Being knocked out, fighters that have been able to become ATG coming off of a KO.

Hearns,Lewis,Duran,

 

I'd rather look at the present, not the past. Manny Pacquiao's and Rafael Marquez's name comes up first. Vic Darchinyan and Israel Vazquez are not in the HOF yet, but both are on a great run after being knocked out early in their career. Jorge Arce's chances are unfortunately little to crack in, but he had an extremely decent 3 division run after he was stopped early. But there are many names in the past. Barrera put on some awesome wins after the first PacMan loss, which was a worse beating than a one-punch KO. Cotto has a lot of fights in him.