Hi NewBoxingFan welcome to forums. Sergey KRUSHER Kovalev makes any chin look like glass, because his power is so immense.
Professor I C Chins from Lichtenstein released a youtube video that proved conclusively that glass chins do exist in boxing.
Yes, Khan, RJJ, David Price, the list goes on. Are you genuinely asking or being a pranker? :hi:Jacory Harris...:hi:Bye Jacory Harris.
yes some fighters actually have glass in their chins its not called a jaw bone in their cases its called a glass jaw. they don't suffer from broken jaws they suffer from shattered chins. its not their fault theyre just born that way