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NEW YORK - JANUARY 28: Mohammad Ali, top, and Joe Frazier, bottom, is separated by the referee during an NABF heavyweight title fight January 28, 1974 at Madison Square Garden in the Manhattan borough of New York City. Ali won the fight in twelve rounds by a unanimous decision. (Photo by Focus on Sport/Getty Images)

NEW YORK - JANUARY 28: Mohammad Ali, top, and Joe Frazier, bottom, is separated by the referee during an NABF heavyweight title fight January 28, 1974 at Madison Square Garden in the Manhattan borough of New York City. Ali won the fight in twelve rounds by a unanimous decision. (Photo by Focus on Sport/Getty Images)