Re: Haye as an amateur
Perhaps Haye has a china chin, perhaps it was making the cruiserweight limit that took away David's punch resistance? He's been stopped once and down heavily twice, in other fighters
Personally I reckon it's a bit of both. I don't think Haye's chin is a complete dead loss (he'd have never won the undisputed title otherwise) but it's looking fairly clear that he's no Oliver McCall in that department either.
His chin has just about held up to win the world title at cruiser, so that's one less ambition he needs to worry about. We'll have to see how he takes a heavyweight punch.
I would imagine many great fighters have been KO'd in the amateurs.