We have a thread going on about which countries produce more glass jawed frauds, but what about iron jaws? I'd say the first place belongs to Mexico, the land of iron chinned macho warriors taught primarily to come forward and block punches with the head
One off the top of my head is Argentina for a place so obscure in World Sports they have produced some damn good and tough prize fighters over the years. :deal
Mexico hands down While relatively few in number, Filipino fighters seem to be demonstrating some excellent mandibular fortitude :think