Muhammad Ali Sees Sonny Liston KO Floyd Patterson. This Day Sonny Liston retains the heavyweight crown.<br>World Heavyweight Title Fight Venue: Convention Center, Las Vegas, Nevada, USA.<br>Sonny Liston vs Floyd Patterson II Thanks to Sweet Fights for fight-footage - Sonny Liston defends the Heavyweight Championship of the World against Floyd .<br>(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 .
