Or stopped in such a manner that if it happened to any other fighter they'd be written off as glass? Tyson-Botha is a great example to me. Botha was good-chinned and tough as nails and Tyson knocked him out cold with a single shot. Toney-Nunn is another good example.
Foreman has an iron chin and he was stopped by Ali. Dick Tiger has one of the greatest chins of all time and he was smashed by Foster.
castillo-corrales 1 pac-morales 2 and 3 - you could say morales was shot but he had the reputation of a granite chin his whole career and i don't think anyone at his weight could have done that..
Kimbo Slice v anyone, because apparently he can knock anyone spark out. buahahahahahahaha! atschatsch