Salvador Sanchez

Juan La Porte was never knocked out and fought names like Salvador Sanchez and Julio Cesar Chavez his only stoppage losses were once by accidental headbutt and the other was when he retired on his stool.

Kid Gavilan 143 fights was never stopped once plus i don't think he was ever knocked down thats amazing.

Carlos Monzon never stopped in 100 fights.

Charley Burley