Goon

Doug Glatt, a slacker who discovers he has a talent for brawling, is approached by a minor league hockey coach and invited to join the team as the "muscle." Despite the fact that Glatt can't skate, his best friend, Pat, convinces him to give it a shot, and Glatt becomes a hero to the team and their fans, until the league's reigning goon becomes threatened by Glatt's success and decides to even the score.

Meet Doug, the nicest guy you'll ever fight.