Isaac Vallie-Flagg

Isaac Vallie-Flagg (born April 8, 1978) is an American mixed martial artist, who formerly competed in the Lightweight division of the Ultimate Fighting Championship. A professional competitor since 2003, he has also formerly competed in Strikeforce, Titan FC, and King of the Cage.

Background
Vallie-Flagg is from Ann Arbor, Michigan, and attended Community High School. Troubled growing up, Vallie-Flagg was not active in sports apart from dabbling with lacrosse. After viewing a UFC event, Vallie-Flagg began training in mixed martial arts and Brazilian jiu-jitsu.

Strikeforce
Vallie-Flagg made his Strikeforce debut against Brian Melancon at Strikeforce: Overeem vs. Werdum winning the bout via split decision.

Vallie-Flagg was scheduled to face Bobby Green at Strikeforce Challengers: Britt vs. Sayers, but he pulled out of the bout on November 11, 2011.

Vallie-Flagg next faced Gesias Cavalcante at Strikeforce: Barnett vs. Cormier. He won the fight via split decision.

Vallie-Flagg was scheduled to face Adriano Martins at Strikeforce: Melendez vs. Healy. However, on September 23, 2012, it was announced that the event was cancelled due to an injury to headliner Gilbert Melendez.

Ultimate Fighting Championship
Following the dissolution of Strikeforce, Vallie-Flagg was brought over to the UFC. In his debut, he faced Yves Edwards on February 2, 2013, at UFC 156. He won the fight split decision.

Vallie-Flagg was expected to face Sam Stout on June 15, 2013, at UFC 161. However, Vallie-Flagg was forced out with a back injury and was replaced by James Krause.

Vallie-Flagg faced Elias Silvério on January 15, 2014, at UFC Fight Night 35. He lost the fight via unanimous decision.

Vallie-Flagg was briefly linked to a bout with Danny Castillo on April 26, 2014, at UFC 172. However, the UFC removed Vallie-Flagg from the bout in favor of a match up with Takanori Gomi. He lost the fight via unanimous decision. Despite the loss on the scorecards, Vallie-Flagg was awarded his first Fight of the Night bonus award for the bout.

Vallie-Flagg faced Matt Wiman at UFC Fight Night 57 on November 22, 2014. He lost the back-and-forth fight via unanimous decision, and was subsequently released from the promotion shortly after.

Personal life
Vallie-Flagg has been vocal about his drug addiction, with which he has struggled since a teenager. Eventually in 2018, he was arrested on suspicion of burglary in Albuquerque, New Mexico, carrying drugs and multiple weapons. After he was released from the jail, he sought out for help and has been sober since 2018.

Mixed martial arts

 * Ultimate Fighting Championship
 * Fight of the Night (One time) vs. Takanori Gomi