Regarding Pacquiao's chin…A heart may be repairable but a chin has a fixed resistance, heightened only by adrenalin. And that goes for Floyd as well because he was rocked hard too (although he survived ) neither one of them could withstand similar punishment consistently. If they stick around very much longer, they will both suffer the fate reserved for those who tarry too long in the game of thrones. Although I'd say Pac is more ripe for the taking. And Rios, he hits harder than Marquez… —Brown Sugar wonders if the Pacman chin is irrevocably cracked