Georges St-Pierre, also known by the initials GSP (Quebec, May 19, 1981), is a Canadian born French actor and former fighter of mixed martial arts. It was the most successful welterweight champion in the history of the prestigious US federation UFC, managing to win the title in 2008 and to defend him for nine consecutive times until 2013, when he decided to retire temporarily. It was also already been champion of the welterweight UFC weights between 2006 and 2007. He has also served as manager in the twelfth season of the reality show The Ultimate Fighter.
Listed as one of the greatest mixed martial artists of all time, for several years has been considered the best welterweight in the world by Sherdog and numerous other publications. In career he was only defeated in two occasions, against Matt Serra and Matt Hughes, debacles later redeemed. He was honored as Fighter of the Year at the Fighters Only World MMA Awards in 2009 while in 2008, 2009 and 2010 was named "Canadian Athlete of the Year" by Sportsnet. As an actor starred in the 2014 film Captain America: The Winter Soldier.