Chins that cracked.

[club fighter]

Roy jones against Antonio Tarver

This is the one that comes to mind, Roy was never the same after that one.

[Split Decision]

Rios
the russian hammer
Gamboa
brooks chin didnt get cracked but his face did v golovkin
ricky burns hased to have a granite chin and got dropped by light punching relikh
Sam sexton was never the same after 12 brutal rounds v 'The Highlander'.

did juanma used to have a decent chin? i didnt see his early career but surely cant be as bad as now