Muhammad Ali Sees Sonny Liston KO Floyd Patterson. This Day Sonny Liston retains the heavyweight crown. World Heavyweight Title Fight Venue: Convention Center, Las Vegas, Nevada, USA. Sonny Liston vs Floyd Patterson II Thanks to Sweet Fights for fight-footage - Sonny Liston defends the Heavyweight Championship of the World against Floyd . (31 Mar 1963) Various shots of Floyd Patterson, Sonny Liston and Cassius Clay in training. Cassius Clay talking. Liston, Patterson rematch, do you have a .
