Muhammed ali, probably.
No Joe Frazier one the first but muhammed ali one the other two
Muhammed Ali's first professional fight was against Tunney Hunsaker on October 29, 1960.
I think he was 40
Muhammed Ali knocked out the fighter Sonny Liston in the first round of the fight. This happened when he saw a chance to do so 2:05 minutes into the fight.
The rematch with Sonny Liston was his first fight after he changed his name.
The fight was with Muhammed Ali and Joe Frazier Ali won 14th round TKO
Ali made $6 million for the third frazier fight, apparently twice what Smokin' Joe received.