Glass jaws.

[Primo Carnera]

Amir Queen Khan
Frank Bruno
Tommy Hearns
David Price
Audley Harrison

Bruno didn't have a glass jaw. He just didn't know how to react. I think it was the Bonecrauher KO (I might be wrong.) , he just stood on the ropes getting pummelled and never went down. He got hit with loads of shots, just taking them defencelessly. That's not a glass jaw.

[Master]

Amir Queen Khan
Frank Bruno
Tommy Hearns
David Price
Audley Harrison

Bruno didn't have a glass jaw. He just didn't know how to react. I think it was the Bonecrauher KO (I might be wrong.) , he just stood on the ropes getting pummelled and never went down. He got hit with loads of shots, just taking them defencelessly. That's not a glass jaw.

Jumbo Cunningham hit him and his legs went to jelly.

[Primo Carnera]

Amir Queen Khan
Frank Bruno
Tommy Hearns
David Price
Audley Harrison

Bruno didn't have a glass jaw. He just didn't know how to react. I think it was the Bonecrauher KO (I might be wrong.) , he just stood on the ropes getting pummelled and never went down. He got hit with loads of shots, just taking them defencelessly. That's not a glass jaw.

Jumbo Cunningham hit him and his legs went to jelly.

Well you just proved yourself wrong!!! He fucking beat Cunningham! That means he came back from being hit to win, so how the fuck does he have a glass jaw?
Come on @erics44 , help me out here!

[Spicoli]

Uncle Roger had some great losses by KO if there is such a thing. Very soild skills, but that chin had a built in stopwatch in it.

Weak or glass is all how you look at it. It doesn't have to be guys who get flattened but more those who were prone to being rocked and rolled by a variety of opponents. Terry Norris comes to mind. Absolute tremendous fighter even p4p for a while but could be hurt at the most unexpected times.