MORE: Ali, Foreman, Frazier and the best 5-year stretch in boxing history However, Frazier's masterpiece was a 15-round unanimous decision win over the self-proclaimed "greatest of all time ...

There was the 24-year-old heavyweight champion of boxing ... time Foreman faced Joe Frazier for the heavyweight championship in 1973, he was undefeated in 37 professional fights, winning most ...