I'm tired of the "bad" or "worn out" chin explanation being so loosely thrown around. I think it often discredits the winner of the fight and gives too much respect to the person who got finished. Yes some fighters are blessed/cursed with the ability or they just have the heart and toughness to absorb a lot of punishment without quitting or staying down. Some can take shots to the head and chin better. But even the best of yhem are susceptible to being clipped by shots that they don't see coming or aren't prepared to absorb. Guys with great chins even to this day, like Anderson Silva, Mark Hunt etc. have all been clipped and put lights out eating flush shots that they didn't see coming. People talk about Luke's chin has gone to shit. NO, his defense has become SHIT. And defense is a skill. How many people could eat the shots Luke has taken in his losses and not be badly, BADLY hurt? No one. I also see people often discredit KG's win over Bisping. Yes it is a fact that the fight should not have been sanctioned. But that does not change the fact that it was a beautifully set up counter shot. At no point in Bisping's career could he have taken that flush. Now people are questioning Rob's chin. I believe Rob has an ok chin. When people talk about that second Romero fight, that was NOT Rob having a great iron chin. That was Rob being EXTREMELY resilient and having no quit in him. But everytime Romero touched that chin with a counter shot that he didn't see coming, he got dropped or did the stanky leg. Yes Romero has power, but it takes more than power to keep a guy like Rob down. Same with Israel. He cracked Rob with counters that he was NOT prepared to defend. Israel being the much more technical striker was able to find those defensive holes much easier than Romero. So it was not a case of Romero wearing down Rob's chin.