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There are few heavyweight champions in the history of boxing that are better known for their losses than their wins. George Foreman became the oldest fighter to ever win the heavyweight championship when he KO'd Michael Moorer in 10 rounds. Mike Tyson became the youngest fighter to ever win the heavyweight championship when he KO'd Trevor Berbick in 2 rounds. George Foreman demolished unbeaten heavyweight champion and future hall of famer Joe Frazier in 2 rounds. [details]