UFC 83: Serra vs St-Pierre 2 was a mixed martial arts event held by the Ultimate Fighting Championship. The event was held on April 19, 2008, at the Bell Centre in Montreal, Quebec, Canada. UFC 83 was the UFC's first event in Canada. It was headlined by UFC Welterweight Champion Matt Serra and UFC Interim Welterweight Champion Georges St. Pierre in a match to decide the undisputed champion. Several prominent Canadian fighters were set to compete, including Kalib Starnes, Mark Bocek, Jason MacDonald, Sam Stout, and Jonathan Goulet. Patrick Côté was scheduled to fight as well, but was forced to pull out after sustaining an injury in a slip-and-fall accident.