Ali KO’s Sonny Liston in their Second Fight January 18, 2013 at 3240 × 2494 in Ali KO’s Sonny Liston in their Second Fight ← Previous Next → Muhammad Ali celebrates his first round knockout of Sonny Liston during the World Heavyweight Title at St. Dominic’s Arena. Lewiston, Maine 5/25/1965 (Image # 2086 )