Originally Posted by MetalMandible
If the 19 year-old is underdeveloped with a scrawny neck and legs it can have a negative impact on punch resistance, this has been proven by numerous guys who couldn't take a punch in the amateurs and later on proved to have superlative or at least average punch resistance. Most of the time KOs early on don't bode well for the fighter in question but some, and I stress some
, grow into a man's body and develop the ability to take a shot.
Leave the Chinchecking for the experts, kiddo. It's clear that you know nothing about Glass Jaws or the science behind them.
So you do agree that Diaz has a dubious shaky glass chin ?