Not the most known Frazier fight, the rematch with Jimmy Ellis (who was way over the hill) happened in 1975, right before Frazier's third fight against Ali.

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Rounds 4-6

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Rounds 7-9 + interviews with Frazier, Dundee and Ellis

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Rounds 3-5 of the first fight (1970), a unification for the WBA/WBC titles.