Matthew John Serra is a retired American mixed martial artist and Brazilian Jiu-Jitsu practitioner who competed for the Ultimate Fighting Championship. He is a former UFC Welterweight Champion as well as The Ultimate Fighter 4 Welterweight Tournament Winner. In Brazilian Jiu-Jitsu, Serra holds a Silver Medal in the ADCC Submission Wrestling World Championship. Serra also served as the head coach for The Ultimate Fighter 6 reality show opposite Matt Hughes. He began practicing martial arts at an early age, first studying kung fu. In the 1990s, Serra began studying Brazilian Jiu-Jitsu under Renzo Gracie and on May 23, 2000, obtained his black belt, the first American to do so under Renzo Gracie. Serra biggest accomplishment in mixed martial arts came at UFC 69 where he defeated Georges St-Pierre to win the UFC Welterweight Championship.