Joe Frazier

Joe Frazier's relentless pressure style and devastating left hook produced a 32-4-1 record with 27 knockouts, cementing him as the first man to hand Muhammad Ali a professional defeat. In the 1971 Fight of the Century at Madison Square Garden, Frazier's unanimous decision victory over Ali showcased his superior aggression and chin, a feat that outperforms #6 George Foreman's 1973 win over Frazier in terms of historical significance. Frazier absorbed 43% more power punches than the average heavyweight in title fights, according to CompuBox data, forcing Ali to the canvas in the 15th round.