Thongchai Sukkoki

Thongchai Sukkoki (ธงชัย สุขโกกี, born 17 August 1973) is a Thai professional football manager, former player and Football Critics YouTuber who is currently the head coach of Thai League 2 club Nakhon Si United.

Nakhon Pathom United
In 2017, After the club relegation to Thai League 4, Sukkoki was hired as the club's coach. The club started again in the Tier 4 league by creating a new team and searching for young players from the initial selection of footballers, with only three players left from the previous season. Nakhon Pathom went on to won the 2018 Thai League 4 Western Region. In 2019, he won his second title after winning the 2019 Thai League 3 Lower Region and was promoted to Thai League 2. Under Sukkoki's management, the King Tiger play a style of football based on maintaining possession by building from the back, and good as combination play.

In 2023, Sukkoki led Nakhon Pathom United won 2022–23 title and the club was promoted to Thai League 1.

BG Pathum United
On 8 May 2023, BG Pathum United appointed Sukkoki as the Rabbits' new head coach in the final league game and The Revo Cup 2022-23 final as well as the start of the Thai League 1 next season. Sukkoki’s debut match ended with a home win over Chonburi, followed by a defeat to Buriram United in the 2022–23 Thai League Cup final.

BG Pathum United started off the 2023–24 Thai League 1 season well, drawing 2–2 to Police Tero on matchday 1 on 11 August 2023, and went on to draw 0–0 at home against PT Prachuap on 18 August 2023. The club then flies off to Shanghai to face Shanghai Port on 22 August 2023 in the 2023–24 AFC Champions League qualifying play-offs when in the 12-minute, Uzbekistan striker, Igor Sergeyev opened up the account to lead the match 1–0 before scoring his second goal in the 26th minute and eventually scoring a hat-trick in the 61st minute to send BG Pathum United through to the 2023–24 AFC Champions League group stage in a 2–3 away win at the Pudong Football Stadium.

Nakhon Si United
On 2 June 2024, Sukkoki was appointed as the new head coach of Thai League 2 club Nakhon Si United, signing a two-year deal.

Manager
Nakhon Pathom United
 * Thai League 2: 2022–23
 * Thai League 3 Lower Region: 2019
 * Thai League 4: 2018
 * Thai League 4 Western Region: 2018

BG Pathum United
 * Thai League Cup runner-up: 2022–23

Individual
 * Thai League 2 Coach of the Year: 2022–23