Muhammad Ali

Muhammad Ali's 56-5 record and three lineal heavyweight championships define a career that transcended sport. His hand speed and footwork let him consistently outmaneuver larger opponents, most famously in the 1974 'Rumble in the Jungle,' where he used the rope-a-dope strategy to wear down George Foreman before stopping him in the eighth round. The 1975 'Thrilla in Manila,' a grueling fight with Joe Frazier that ended after the fourteenth round, is widely considered one of the greatest fights in boxing history.