Leon Spinks lands a punch on Muhammad Ali in the title fight in Las Vegas on Feb. 15, 1978. Spinks beat Ali to claim the heavyweight championship and shock the boxing world.

Fist of challenger Leon Spinks flattens the nose of heavyweight champion Muhammad Ali in the title fight at Las Vegas, Nev., Feb. 15, 1978. Officials awarded the fight and the title to Spinks in a split decision. (AP Photo)