Silva's chin has never been suspect. He doesnt even flinch when he gets hit. Honestly I don't he's ever been hurt (visable pain) besides that nasty heel hook.
He stumbled a little bit when hit by Sonnen on the feet. I mean it was basically math from his hits.
Amount of times hit = 4
Amount of times hurt = 4
His offence and defence is so amazing that he almost NEVER got hit, I was just suspect of how Sonnen, a guy who doesnt hit hard, hurt him on almost every punch. Sure Bonnar isnt a one punch KO guy, but Silva was taken them amazingly and asking for more, so he shut me the fk up in this fight lol.