 Fifteen seconds into the fight, Tyson scored with a huge uppercut that knocked Frazier senseless and hit him with a combination as Frazier slumped to the canvas unconscious.Referee Joe Cortez started to count while looking at Frazier, but immediately waved off the fight once he saw that Frazier was out cold.The bout only lasted thirty seconds, which proved to be Tyson's quickest knockout of his career.