Muhammad Ali, one of boxing's greatest champions, lost a total of five professional fights during his career. His notable defeats include losses to Joe Frazier, Ken Norton, Leon Spinks, and Larry Holmes, with his final fight being a loss to Trevor Berbick in 1981. Despite these defeats, Ali's legacy as a fighter and cultural icon remains unmatched.
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3. He beat Sonny Liston in 1964, then George Foreman in 1974, then lost and regained the title from Leon Spinks in 1978.
No, Ali was too old when he fought Holmes and as such, never beat him.
Joe Frazier fought Muhammad Ali three times, winning the first bout on March 8, 1971, in what is famously known as the "Fight of the Century." However, Ali won the subsequent two fights: the rematch on January 28, 1974, and the final bout, the "Thrilla in Manila," on October 1, 1975. Therefore, Frazier defeated Ali once while Ali won twice against Frazier.
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Mike Tyson and Muhammad Ali never fought each other, so Tyson has not beaten Ali at all. Their careers did not overlap in a way that allowed for a match, as Ali's prime was in the 1960s and 70s, while Tyson rose to prominence in the late 1980s. They are both iconic figures in boxing history, but their paths never crossed in the ring.