Frasier had a great response before their first fight, when Ali said something like he was God; Fraiser said God was going to get his ass beat tonight, and he got Ali good.
While Ali won the next two, Frasier won the one that mattered: they were both undefeated heavyweight champions (Ali had his belt stripped earlier because of the draft opposition).
I got to see the Ali-Frasier fight live, only it was the two daughters fighting LOL. The Ali daughter was pretty good BTW.