Jannik Sinner

Jannik Sinner (born 16 August 2001) is an Italian professional tennis player. He is currently ranked as the World No. 1 in singles by the Association of Tennis Professionals (ATP), making him the highest-ranked Italian singles player in history. Sinner has won 14 singles titles on the ATP Tour, including a Grand Slam title at the 2024 Australian Open and two Masters 1000 titles.

At the end of the 2023 season, Sinner was runner-up at the ATP Finals and led Italy to the Davis Cup crown, their first since 1976. Sinner also has a career-high ranking of world No. 124 in doubles, achieved in September 2021, and has won one ATP Tour title in doubles.

Sinner grew up in northern Italy in the predominantly German-speaking region of South Tyrol. After being a competitive skier between the ages of 7–12, Sinner switched to focus exclusively on tennis at age 13, and moved to Bordighera on the Italian Riviera to train with veteran coach Riccardo Piatti. Despite limited success as a junior, Sinner began playing in professional men's events aged 16, and became one of the few players to win multiple ATP Challenger Tour titles at age 17. In 2019, he broke into the top 100, winning the Next Generation ATP Finals and the ATP Newcomer of the Year award.

In 2021, he became the youngest ATP 500 champion at the 2021 Citi Open, and became the first player born in the 2000s to enter the top 10 in rankings. Sinner won his first Masters 1000 title at the 2023 Canadian Open and finished the season by reaching the final of the ATP Finals and contributed to Italy lifting the Davis Cup. At the 2024 Australian Open, Sinner defeated world No. 1 Novak Djokovic in the semifinals to reach his first major final. He then defeated Daniil Medvedev in a five-set final, coming back from two sets down to win his first Major title.

Early life and background
Jannik Sinner was born 16 August 2001 to Hanspeter and Siglinde Sinner in Innichen in the province of South Tyrol in Northern Italy. His mother tongue is German. He grew up in the town of Sexten in the Dolomites, the family hometown, where his father worked as a chef, and his mother as a waitress at a ski lodge. He has an older adopted brother named Mark, who was born in Russia. Sinner began both skiing and playing tennis at age three. He did his first ski races in first grade, played his first tennis tournament at the age of five. He was one of Italy's top junior skiers from seven to twelve years old, winning a national championship in giant slalom at age seven in 2008 and becoming a national runner-up at age eleven in 2012.

While training in skiing Sinner gave up tennis for a year at the age of seven before his father pushed him to return to the sport. When he resumed playing, he began working with Heribert Mayr as his first regular coach. His grandfather would drive him to Tennis San Giorgio early in the morning, where Sinner had to take individual lessons with Mayr as no child his age there could keep up with his level and he was much faster than older children. Nonetheless, tennis was still only his third priority behind skiing and football. In the morning, he competed in a ski race, and in the afternoon, he played a football match for AFC Sexten (Youth).

At the age of 13, Sinner decided to give up skiing and football in favour of tennis due to his physique; he was tall, thin, and weighed only 35 kilos. He also preferred competing in an individual sport directly against an opponent and having more control over the outcome. He decided to move on his own to Bordighera in Liguria on the Italian Riviera to train at the Piatti Tennis Centre under Riccardo Piatti and Massimo Sartori, a decision his parents supported. At the centre, Sinner lived with the family of Luka Cvjetković, one of his coaches, and later moved out to share an apartment with two boys. Before Sinner began training in tennis full-time with Piatti, he had been playing only twice a week. He graduated from the Walther Institute, a private economics school in Bolzano.

Junior career
Sinner began playing on the ITF Junior Circuit, the premier junior tour which is run by the International Tennis Federation (ITF), in 2016. Despite having limited success as a junior, he moved mainly to the professional tour following the end of 2017. He never played the main draw of any high-level Grade 1 events in singles, and the only higher-level Grade A tournament he entered was the Trofeo Bonfiglio. He followed up an opening round loss at Italy's Grade A tournament in 2017 with a quarterfinal in 2018. That was the only junior event he played in 2018. He never played any of the junior Grand Slam tournaments. Because he entered so few high-level tournaments, Sinner's career-high junior ranking was a relatively low No. 133.

2018: ITF Futures and Challenger Tour
Sinner began playing on the ITF Men's Circuit in early 2018. With his low ranking he could initially be directly accepted into only ITF Futures events. Nonetheless, he began receiving wild cards for ATP Challenger Tour events, the second-tier tour run by the Association of Tennis Professionals (ATP), in the second half of the year. His only ITF title of the year was in doubles, and he finished the season ranked No. 551.

2019: NextGen Finals title and top 100
Sinner won his first ATP Challenger title in Bergamo in February 2019 at the age of 17 years and 6 months, despite entering the tournament with no match wins at the Challenger level. He became the first person born in 2001 to reach a Challenger final, and the youngest Italian to win a Challenger title in history. With the title, he rose over 200 spots in ATP rankings up to No. 324. After his first two ITF Futures titles, Sinner entered his first ATP tournament at the Hungarian Open as a lucky loser, where he notched his first tour-level win over home wild card Máté Valkusz. The next week, he reached his second ATP Challenger final in Ostrava, finishing runner-up to Kamil Majchrzak.

During the second half of the season Sinner played more often on the ATP Tour than the Challenger Tour. His first ATP Masters victory came at the Italian Open against Steve Johnson, and he broke into the top 200 with his next ATP win at the Croatia Open Umag in July. The next month, he won a second ATP Challenger title in Lexington to become one of just eleven 17-year-olds to have won multiple Challenger titles. After losing in qualifying at Wimbledon, Sinner qualified for his first Grand Slam main draw at the US Open. He lost his debut match to No. 24 Stan Wawrinka.

Sinner had a strong finish to the season. As a wild card at the European Open, he became the youngest player in five years to reach an ATP semifinal. Along the way, he knocked off top seed and world No. 13 Gaël Monfils for his first career top 50 victory. This performance helped him break into the top 100 for the first time one week later. At the end of the season, Sinner qualified for the 2019 Next Gen ATP Finals as the Italian wild card and the lowest seed. He won in his round robin group with victories over Frances Tiafoe and Mikael Ymer, losing only to Ugo Humbert. After defeating Miomir Kecmanović in the semifinals, Sinner upset top seed and world No. 18 Alex de Minaur in straight sets to win the title. He played one last event in Italy the following week, winning a third Challenger title in Ortisei. Sinner finished the year at world No. 78, becoming the youngest player in the year-end top 80 since Rafael Nadal in 2003. He was also named ATP Newcomer of the Year. and received the Gazzetta Sport Award for Best Performance of the Year for his win over de Minaur in the Next Gen ATP Finals.

2020: First ATP title and top 40
Early in the year Sinner made the second round of the 2020 Australian Open, recording his first Grand Slam main draw match win over home wild card Max Purcell before losing to Márton Fucsovics. As a wild card at the Rotterdam Open, he earned his first top 10 victory against world No. 10 David Goffin.

Following the ATP Tour shutdown due to the COVID-19 pandemic, Sinner had a successful restart to the season. Although he lost his opening round match to Karen Khachanov at the US Open, he fared better in Europe. He reached the third round at the Rome Masters, highlighted by a victory over world No. 6 Stefanos Tsitsipas. He then progressed to become the youngest quarterfinalist at the French Open since Novak Djokovic in 2006, and the first to make the quarterfinals on debut since Rafael Nadal in 2005. During the tournament, he defeated Goffin again as well as US Open runner-up and world No. 7 Alexander Zverev before losing to Nadal.

After a semifinal at the Cologne Championship, where he lost to Zverev, Sinner closed out the season by winning the Sofia Open for his first ATP title. During the event, he defeated Next Gen rival Alex de Minaur and then Vasek Pospisil in the final. He became the youngest Italian tour-level champion in the Open Era and the youngest player overall to win an ATP title since Kei Nishikori in 2008.

Sinner finished the year ranked world No. 37.

2021: Four titles, Masters 1000 final, top 10 debut
Sinner carried over his success from late 2020 into the start of the 2021 season. He won his second career ATP title at the Great Ocean Road Open, and notably defeated No. 20 Karen Khachanov in the semifinals after saving a match point. He became the youngest to win back-to-back ATP titles since Rafael Nadal in 2005. His ten-match winning streak came to an end in the first round of the 2021 Australian Open, where he lost a tight five-set match to world No. 12 Denis Shapovalov.

Sinner's next big result was at the Miami Open, where he reached his first ATP Masters 1000 final. During the tournament, he defeated Khachanov again and later world No. 12 Roberto Bautista Agut in the semifinal. He finished runner-up to Hubert Hurkacz.

Then at the French Open, his campaign was stopped short for the second year running by Rafael Nadal, who this time defeated Sinner in straight sets in the fourth round. In his main draw debut at Wimbledon, he lost in the first round to Márton Fucsovics.

Partnering Reilly Opelka he won his first doubles title at the 2021 Atlanta Open, defeating Steve Johnson and Jordan Thompson. At the same tournament in singles he fell in the second round to Christopher O'Connell.

At the 2021 Citi Open in Washington, D.C., Sinner went into the tournament as the fifth seed and made it to the finals and beat several young players along the way such as Emil Ruusuvuori, Sebastian Korda, and Jenson Brooksby. He beat Mackenzie McDonald in the final to win his third title and first ATP 500 title. Sinner was the first Italian finalist and champion in Washington's tournament history as well as the youngest ATP 500 and first teen champion since the category was created in 2009. As a result, he entered the top 15 in the ATP rankings on 9 August 2021.

At the US Open, he defeated Gaël Monfils in the third round to reach the second week of a Major for the second time in the season. Sinner's tournament ended when he lost to Alexander Zverev in the 4th round in straight sets.

Sinner successfully defended his title at the Sofia Open as the top seed, defeating again second seed Gaël Monfils in the final. Sinner made his sixth career final at the 2021 European Open without dropping a set en route. He defeated Lorenzo Musetti, Arthur Rinderknech and Lloyd Harris to reach the final. He bested Diego Schwartzman in the final to take his fifth career title. He became the youngest man to win five ATP titles since 19-year-old Novak Djokovic.

On 1 November, Sinner became the first male player born in the 2000s to break into the top-10 after a semifinal appearance at the Vienna Open. At the Rolex Paris Masters, Sinner received a bye in the first round but was defeated by Carlos Alcaraz. Because of this, Sinner was unable to directly qualify for the season-ending Nitto ATP Finals.

At the ATP Finals in Turin, Sinner was present as the first alternate. Sinner entered the tournament after countryman Matteo Berrettini was forced to withdraw with an abdominal injury after his first match with Alexander Zverev. He defeated Hubert Hurkacz and became the youngest player to win an ATP Finals match on debut since Lleyton Hewitt in Lisbon in 2000 and the first alternate to win a match since Janko Tipsarević in London in 2011. Sinner played Daniil Medvedev next in the round robin stage, holding a match point before being defeated in 3 sets. As a result, he re-entered the top-10 in the rankings and finished the year at world No. 10 on 22 November 2021.

In the Davis Cup Finals, Sinner defeated John Isner becoming only the second player (after Thiemo de Bakker) ever to bagel Isner.

2022: Three major quarterfinals, first clay court title
At the Australian Open Sinner reached the quarterfinals of a major for the second time in his career, becoming the fifth Italian man to reach that stage in Melbourne. He then lost to fourth seed Stefanos Tsitsipas in straight sets.

At the Miami Open, he saved three match points in the opening round against Emil Ruusuvuori and five match points against Pablo Carreño Busta to advance to the round of 16. He then defeated Nick Kyrgios but retired against Francisco Cerúndolo in the quarterfinals. In the Monte Carlo Masters, he again reached the quarterfinals after defeating fifth seed Andrey Rublev, before losing to second seed Alexander Zverev in a three-set and over three hour-long match. He again saved three match points in the opener at the Madrid Open against Tommy Paul to move to the second round. Next, he defeated Alex de Minaur for his 100th career win; he hit this milestone after 147 matches (100–47) on Tour, which was a faster rate than everyone in the Top 10 besides Rafael Nadal (100–37) and Novak Djokovic (100–43). He was defeated in the third round by Félix Auger-Aliassime.

At the French Open, he retired in the fourth round against Andrey Rublev after sustaining a knee injury.

At the Eastbourne International, Sinner suffered his first opening round loss of the year after losing to Tommy Paul in three sets. At the 2022 Wimbledon Championships, he recorded his first win at this Major over Stan Wawrinka. He then beat Mikael Ymer, John Isner, and Carlos Alcaraz to reach his third career Grand Slam quarterfinal. He lost to top seed and eventual champion Novak Djokovic in five sets in the quarterfinals, after being two sets to love up.

At the Croatia Open, Sinner defeated Carlos Alcaraz in the final to win his first clay court title. In Montreal, he lost to eventual champion Pablo Carreño Busta in the third round. Sinner's loss guaranteed a maiden Masters 1000 finalist from his half of the draw. At the Cincinnati Masters, he lost in the third round to Félix Auger-Aliassime after being up a set, a break, and 2 match points.

Seeded 11th at the US Open, he reached the fourth round after defeating Brandon Nakashima in four sets. Next, he defeated Ilya Ivashka in a five set match lasting close to four hours to reach the quarterfinals for the first time at this Major. He became the youngest player to reach the quarterfinals of all four Grand Slam tournaments since Novak Djokovic in 2007–08. He lost to Carlos Alcaraz in a five-set match that lasted 5 hours and 15 minutes; the match set the record as the latest finish (at 2:50 am EST) and second longest match in US Open history. Sinner held a match point while serving up 5–4 in the 4th set, but ended up losing the set 5–7.

In September, during the Davis Cup Finals after Matteo Berrettini won his singles match against Argentina, Sinner won the second match (best of three matches) and thus secured a place for Italy's Davis Cup team at the Final 8 of the Davis Cup Finals. Following close to a month break due to an injury sustained in the semifinal at the 2022 Sofia Open he returned to the 2022 Erste Bank Open in Vienna and reached also the quarterfinals losing to top seed and eventual champion Daniil Medvedev. In his next tournament, the 2022 Rolex Paris Masters, he lost in the first round to qualifier Marc-Andrea Huesler.

Sinner finished the year ranked 15th in the world, one space ahead of countryman Matteo Berrettini.

2023: Masters 1000 title, Davis Cup champion, world No. 4
Sinner started his season at the 2023 Adelaide international 1, where he lost in the quarterfinals to eventual runner-up Sebastian Korda. At the 2023 Australian Open, Sinner lost in the 4th round to eventual runner-up Stefanos Tsitsipas in 5 sets.

Sinner then won his seventh title at the Open Sud de France in Montpellier, becoming the first player to win a tour-level title in the season without having dropped a single set and the first since countryman Lorenzo Musetti won the title in Naples in October 2022. At the ABN AMRO Open he defeated top seed and world No. 3 Stefanos Tsitsipas taking his revenge for the Australian Open loss, for his biggest win ever. Next in the quarterfinals, he defeated Stan Wawrinka in straight sets. In the semifinals, he defeated home favorite Tallon Griekspoor to reach the final, which he lost to sixth seed Daniil Medvedev.

In March, he played in Indian Wells where he defeated Richard Gasquet, Adrian Mannarino, and Stan Wawrinka all in straight sets to advance to the quarterfinals where he faced defending champion Taylor Fritz and won in a three-set match. In the following round in the semifinals, he lost in straight sets to career rival and top seed Carlos Alcaraz who returned to world No. 1 following the tournament. In Miami, he reached the quarterfinals of this tournament for a third straight year after defeating Grigor Dimitrov and Andrey Rublev, thus returning to the top 10 in the rankings at world No. 9. He then defeated Emil Ruusuvuori to reach back-to-back semifinals, where he again faced the defending champion Carlos Alcaraz, this time winning to reach his second Miami and career Masters final in three years, putting an end to Alcaraz's hopes for a Sunshine Double and preventing him from returning to the No. 1 spot. He lost to fourth seed Daniil Medvedev in straight sets in the final, extending his losing streak versus the Russian to 0–6.

In Monte Carlo he reached a third consecutive Masters semifinal defeating compatriot and 16th seed Lorenzo Musetti. At the French Open, Sinner was upset in the second round by Daniel Altmaier in a five-set match despite serving for the match in the fourth set and having two match points. At five hours and 26 minutes, it was the longest match of Sinner's career up until this point and the fifth-longest in the tournament history as well as the second longest of the season after Andy Murray against Thanasi Kokkinakis at the Australian Open.

He reached back to back quarterfinals in Wimbledon after defeating Juan Manuel Cerundolo, Diego Schwartzman, Quentin Halys and Daniel Elahi Galan. He then reached his first Major semifinal after defeating Roman Safiullin, before losing to Novak Djokovic in straight sets. In August, he won his maiden Masters 1000 title at the Canadian Open, defeating compatriot Matteo Berrettini, Andy Murray by walkover, Gaël Monfils, and Tommy Paul en route to the final, where he beat Alex de Minaur in straight sets for his eighth ATP title.

At the China Open, he defeated world No. 2 Carlos Alcaraz, his fourth tour-level win against the Spaniard, to reach his fifth final of the season, where he defeated world No. 3 Daniil Medvedev for the first time at the seventh time of asking. As a result, he climbed to a career-high World No. 4 to become the second Italian in the history of the ATP rankings to reach the Top 5, equaling Adriano Panatta. At the Shanghai Masters he lost in the round of 16 to Ben Shelton. He recorded his 55th win over Andrey Rublev to reach his fourth ATP 500 career final in Vienna and became the first Italian man with the most wins for a season in the Open Era, surpassing Corrado Barazzutti's 54 mark in 1978. He won the final defeating again top seed Daniil Medvedev to win his tenth ATP title, defeating him in two consecutive finals.

On his debut at the ATP Finals, Sinner won all of his round-robin matches, notably beating the world No. 1 Novak Djokovic in a third set tiebreaker to clinch his fifth top-5 win in a row. He ultimately lost in a rematch against Djokovic in the final. He then made his debut in the Davis Cup, where he defeated Tallon Griekspoor in singles to help Italy win its quarterfinal tie against the Netherlands. In the semifinal, Sinner faced Djokovic for the third time in 11 days, and become the first player to defeat him in a Davis Cup singles match since Juan Martín del Potro in 2011. He saved three consecutive match points in the third set to become only the fourth player to beat Djokovic from match points down and the first one to do so with three in a row. He also became only the third player ever to defeat Djokovic twice in 12 days, alongside Rafael Nadal and Andy Murray. Sinner then teamed up with Lorenzo Sonego for the decisive doubles match, defeating Djokovic and Miomir Kecmanovic to clinch the tie and help Italy reach the Davis Cup final for the first time since 1998. In the final, he defeated Australian Alex de Minaur to clinch the title for Italy for the second time after 47 years since 1976. Sinner was awarded the Most Improved Player of the Year award and voted the Fans' Favorite at the 2023 ATP Awards, while his coaches, Darren Cahill and Simone Vagnozzi, won the Coach of the Year award. Sinner also received the award for Best Tennis Player at the Supertennis Awards.

2024: First major title, 200th career win, world No. 1
Sinner started his year at the Australian Open, where he beat Botic van de Zandschulp, Jesper de Jong, Sebastián Báez, Karen Khachanov and Andrey Rublev (all in straight sets) to reach his second Grand Slam semifinal and first at the Australian Open. In the semifinals, he upset world no. 1 and defending champion Novak Djokovic to advance to his first major final, becoming the first player not to face a break point against Djokovic in a completed Grand Slam match. Sinner's victory over Djokovic was the latter's first defeat at the Australian Open since 2018. He became the first Italian player to reach the singles final at this major and the third man, after Adriano Panatta at the 1976 French Open and Matteo Berrettini at the 2021 Wimbledon Championships, to reach a major final in the Open Era. In the final, he came from a two-set deficit to beat Daniil Medvedev to become the first Italian player, male or female, to win the Australian Open singles title, and the third man to win a Major (the second of which in the Open Era), and the first in 48 years. His victory over Medvedev meant he became the second player to win the Australian Open after losing the first two sets in the final, after Rafael Nadal, who also beat Medvedev in 2022.

As the top seed at the Rotterdam Open, he recorded his 200th singles win in the quarterfinals, after Milos Raonic retired with a hip injury with Sinner leading by a set, becoming the first player born in the 2000s to accomplish this feat. After defeating Tallon Griekspoor in the semifinal and Alex de Minaur in the final, Sinner rose to a new career high of No. 3 in the world, becoming the highest-ranked Italian player in history. Sinner also became the first male player since Lleyton Hewitt, in 2001, to win his debut event as Grand Slam champion. At the 2024 BNP Paribas Open, with a victory over 25th seed Jan-Lennard Struff to reach the fourth round, he recorded his 17th consecutive match win, the longest ATP level streak for an Italian player in the Open Era. Sinner extended this to 19 consecutive wins (16–0 in 2024) by defeating Jiří Lehečka in the quarterfinal. Prior to his semifinal defeat to Carlos Alcaraz, Sinner had won 36 of his previous 38 matches, dating back to the 2023 China Open.

In March, Sinner played in Indian Wells where he defeated Thanasi Kokkinakis, Jan-Lennard Struff, Ben Shelton, and Jiří Lehečka (all in straight sets) to advance to the semifinals. In the semifinals, he faced Carlos Alcaraz and lost in three-sets. He also played in Indian Wells doubles with Lorenzo Sonego where they defeated Karen Khachanov and Andrey Rublev in the first round in straight sets. In the second round, they lost to Marcel Granollers and Horacio Zeballos in straight sets. At the 2024 Miami Open, Sinner defeated Grigor Dimitrov in the final to win his second Master’s 1000 title. As a result, Sinner climbed to a career high (and Italian record) ranking of No. 2 in the world. Sinner improved his 2024 ATP match record to 22–1.

Sinner's clay season saw his second defeat of the season, to Stefanos Tsitsipas at the Monte-Carlo Masters, in April. In May, Sinner withdrew from the Madrid Masters, at the quarterfinal stage, due to a hip injury. Three days later, Sinner withdrew from the Italian Open due to the same injury. Following Novak Djokovic's withdrawal from the 2024 French Open on 4 June, Sinner became World No.1 for the first time on Monday 10 June 2024, following the conclusion of the tournament. He became the first Italian player (male or female) to hold the top position in the rankings. Sinner lost in the semifinal to Alcaraz in five sets.

At the 2024 Halle Open, Sinner defeated Tallon Grikespoor, Fábián Marozsán, Jan-Lennard Struff, Zhang Zhizhen and Hubert Hurkacz to win his debut tournament as World No. 1, becoming just the eighth male player to achieve this feat. Sinner improved his 2024 match record to 38–3. At the 2024 Wimbledon Championships, Sinner entered as the top seed in a Grand Slam for the first time. He defeated Yannik Hanfmann, Matteo Berrettini, Miomir Kecmanović and Ben Shelton, but lost to Daniil Medvedev in the quarterfinals in five sets, after a medical timeout for illness during the third set.

Carlos Alcaraz
Jannik Sinner and Carlos Alcaraz have faced each other 9 times since 2021, with Alcaraz leading the rivalry at 5–4. The duo have played a number of high-profile matches, such as the 2024 French Open semifinal, which Alcaraz won in five-sets, the 2022 US Open quarterfinal, which Alcaraz won saving match points (going on to win the title) in five-sets, and the 2023 Miami semifinal, which was won by Sinner.

Daniil Medvedev
Jannik Sinner and Daniil Medvedev have met each other 12 times since 2020, with Medvedev leading the rivalry at 7–5. The duo have played a number of high-profile matches, such as the 2024 Wimbledon quarterfinal, which Medvedev won in five-sets, and the 2024 Australian Open final, which Sinner won in five-sets after being two-sets-to-love down.

Playing style
Sinner is an aggressive baseliner and is one of the hardest hitters on the ATP tour. Sinner's groundstroke strength is his two-handed-backhand, which he hits with more topspin than any other player on the tour, registering an average of 1858 revolutions per minute on the shot along with the fifth-best average speed of 111.2 km/h. His forehand is also a strength, owing to the fact he has a short compact takeback, meaning he rarely has to rush the shot, and the ability to rapidly open up his body, generating huge racket head speed and allowing him to hit the shot at over 100 mph on occasion. He uses a modern, semi-western grip to generate large amounts of topspin, increasing net clearance and reducing the likelihood of unforced errors.

He also possesses a powerful first serve, which can reach up to speeds of 221 km/h. His first serve accuracy was very inconsistent, often only making them 50% of the time. His coaching team has tried to combat this by alternating between the pinpoint (legs together) and platform (legs apart) stances; as of late 2023 they have settled on the pinpoint stance. Sinner is aiming to incorporate more variety into his game, hence he has been developing his net game and ability to serve-and-volley, as well as his slices and dropshots, to reduce the number of long rallies he has to play from the baseline.

Sinner has been compared to Roger Federer for his calm on-court demeanour and all-court movement. Federer himself has praised Sinner for the balance in his game, remarking, "What I like about him is that he almost has the same speed of shooting from the forehand and backhand". Former world No. 1 junior and tennis coach Claudio Pistolesi has praised Sinner's good lateral movement, which he attributes in part to Sinner's background in skiing. In this regard, Sinner has been compared to Novak Djokovic, who also credits a background in skiing for improving his tennis skills.

Sinner plays with contact lenses and has stated that he cannot even see the ball without them.

Coaches and team
When Sinner began to prioritise tennis at age thirteen, he was coached by Riccardo Piatti, who had also been a part-time coach of Novak Djokovic and Milos Raonic. At the time, he also began working with Andrea Volpini and Massimo Sartori, the latter of whom was a longtime coach of Andreas Seppi. He continued to work with Piatti as his primary coach, and Volpini as his second coach. His team also consisted of physiotherapist Claudio Zimaglia and fitness coach Dalibor Sirola.

In February 2022, he ended his long collaboration with Piatti and his team and began to train with Simone Vagnozzi, ex-coach of Marco Cecchinato, new fitness coach Umberto Ferrara and physiotherapist. In July 2022, coach Darren Cahill officially joined Sinner's team. Instead of hiring a mental coach like other tennis players, Sinner uses Formula Medicine, an Italian mental training program developed for Formula 1 drivers. In early 2023, he hired Giacomo Naldi as his personal physiotherapist.

Sponsorships, endorsements and other ventures
At age 17, Sinner signed sponsorship deals with Nike and Head in 2019 for tennis footwear, apparel, and equipment. In 2020, when he was eighteen years old and not yet in the top 50 of the ATP rankings, Sinner signed a global ambassador contract with Rolex. In October that year, when he was ranked no. 46, he signed a sponsorship contract with Alfa Romeo. In 2021, he signed with Intesa Sanpaolo. In 2022, Sinner signed a new $150 million sponsorship contract with Nike spanning ten years and became the face of Gucci and Lavazza. In 2023, Sinner signed a partnership with Formula 1 to help attract young diverse audience to the motorsport. In 2024, L’Oréal’s skincare brand La-Roche Posay appointed Sinner as their global brand advocate to help raise awareness about sun protection. Some of his other sponsors include FASTWEB, De Cecco, Panini Comics, Technogym, Enervit, Parmigiano Reggiano, and Pigna.

During the COVID-19 pandemic in 2020, Sinner launched his mental health initiative "What’s Kept You Moving", a series in which he interviewed other young athletes about overcoming mental health challenges in sports. In 2022, Sinner became the face of the "An Ace for Research" initiative for cancer research, committing to a donation for the purchase of modern lasers to diagnose cancers in men for every ace he scored in the ATP Finals, and later visited the research laboratories at The Candiolo Cancer Institute.

He ventured into the investment world in 2022, diversifying his assets through four different companies that he registered in his place of residence, Monte Carlo. His real estate company owns properties at Corso Venezia in the historic centre of Milan.

In 2022, Sinner released the comic book Piccoli grandi campioni: Il manuale illustrato del tennis di Jannik Sinner through Panini Comics, an illustrated tennis manual for children in which an illustrated character of Sinner explains tennis and gives advice to beginners.

In the media and popular culture
Sinner’s nickname is The Fox, which inspired the design of his logo for Nike. A group of his Italian fans called the Carota Boys has garnered wide media attention for supporting him at major tournaments around the world dressed in carrot costumes.

Sinner has been the subject of incessant media attention in Italy and has been credited with the surge in the popularity of tennis in the country. It has been referred to as the Sinner Effect. Following his Davis Cup and Australian Open titles, Sinner was honored by the Prime Minister of Italy, Giorgia Meloni, in Chigi Palace in Rome and met with the President of Italy, Sergio Mattarella. Italy's Minister of Foreign Affairs, Antonio Tajani, appointed Sinner as Ambassador of Sports Diplomacy. Sinner subsequently declined an official invitation supported by the Prime Minister to appear at Italy's Sanremo Music Festival. The invitation caused controversy and public debate, with the president of The Italian Tennis Federation publicly advising Sinner against accepting it, stating that he must be protected from excessive media exposure and "should not be exploited". In June 2024, he received honorary citizenship of Sexten where he grew up.

During the 2023 Wimbledon, Sinner entered Centre Court carrying a monogrammed beige leather Gucci duffel bag, breaking Wimbledon’s all-white dress code, which made him the first tennis player to do so. The accessory prompted worldwide media coverage and commentary, with CNN pondering whether Sinner’s bag signals a shift in Wimbledon’s strict traditions.

In 2022, Sinner hosted Breaking Points, a video series created by GQ where he interviewed sports icons about mental health. In 2023, he was featured in GQ’s short film series A Hero’s Journey, released also as a podcast.

The Times has decribed Sinner as "the Gucci model with a shock of red hair and a surprisingly gangly frame".

On May 15, 2024, a book titled Diventare Sinner, written by Enzo Anderloni, Michelangelo Dell'Edera and Alessandro Mastroluca in collaboration with the Italian Tennis Federation was published by Giunti Editore. It follows Sinner’s evolution from a junior ski champion to a professional tennis player and grand slam champion.

In 2024, Forbes has named Sinner on their 30 Under 30 Europe list for 2024.

Personal life
Sinner grew up in a German-speaking family. His Italian greatly improved after moving to Bordighera at the age of 13, and he also speaks English.

Sinner resides in Monte Carlo in Monaco. He is a Formula 1 fan and supports the Italian football club AC Milan. One of his tennis idols is compatriot Andreas Seppi, who is also from South Tyrol. Aged 17, Sinner stated that one of his goals was to "do better than him [Seppi]". He also idolized Roger Federer and Novak Djokovic.

Sinner follows a healthy diet and has stated that he has never been to bars or gone clubbing. He declines to discuss his private life in interviews and avoids social media, deeming it "unhealthy", "dangerous" and "not real life". He had been in a relationship with Italian model Maria Braccini (2020–2024). As of 2024, he has been in a relationship with tennis player Anna Kalinskaya.

Grand Slam singles performance timeline
Current through the 2024 Wimbledon Championships Source: ATP profile

Open Era records

 * This record was attained in the Open Era of tennis.
 * Records in bold indicate peer-less achievements.