being rocked and recovering quickly and being rocked and not recovering is 2 huge different things imo, guys like tito, chuck, fedor ect have the ability to get rocked yet regain their composure in 1 second or so. remember when ken fought tito in the first fight? i think it was the first rd, but tito had ken against the fence and was hitting ken with some pretty good shots and ken winds up and nails tito on the chin with a huge right hook and you see tito fall to one knee and tito,s head dipped and looked out for a split second but then tito recovered and grabbed ken. another was fedor vs fujita in pride, fujits throws a huge overhand right bomb that nails the russion right on the temple and you see fedor wobble like he just drank 40 bottles of vodka, fujita try to finish fedor but fedor recovered very fast and ended up submitting the huge japanese beast by RNC. chuck was also rocked pretty good in a few of his fights and recovered very fast. like the guys above said, you cant train for that ability, your either born with the ability to take a shot or your not period. cabbage is another guy who has a rock head and can take a shot. wanderlie was another guy who could get dropped clean with a nice shot and bounce right back up. to be a champion and stay a champion you need the ability to take a hard shot or 2 and recover quickly and shake it off, glass jaws fighters get quickly exposed in this sport of mma