Understood and appreciated. I'm pretty limited in my Corley knowledge...I just saw his fight on the undercard of RJJ/Tito, his fights with Floyd and Cotto.
Wouldn't call it iron, could be but we dont know. Had DLH hit him with that left hook and he remained standing, then we would know. Judah nearly kd him too and hes not a massive puncher at 147. floyd is too good at not getting hit so he will never have to show just how tough his chin is.
That was completely a balance issue, though. From what I remember, Mayweather shot out a jab fient to the head, and then instantly sunk into a crouch (while moving forward) to try for a straight right to the midsection. Judah leaned back slightly and delivered a quick (but not very much weight behind it) counter shot with his lead hand, and Mayweather (who was still in motion trying to land his own shot) stumbled away to the side for a second or two due to bring caught at the perfect moment to break his balance. He wasn't hurt at all, because he instantly regained composure and moved back to engage Judah. His glove definitely touched the canvas, and so it was technically a KD, but it says nothing about his chin.
Mayweather had above average power at 130, a great chin from 130 to 154, great speed from 130-140 and superb stamina also in all weight classes. One of the most complete fighters ever.
As someone pointed out, it was from chop chop corley. Good punch, but the guy can't punch threw a wet tissue. That was just one of the few times Mayweather has been caught really clean.