Joshua vs Khan - Who's chin is worse?

[WhatDisButtonDo]

I don't think Joshua chin is as bad as people are making it out to be. He was hit on top of the head and more than likely concussed. I like giving people a hard time for Joshua but because most of his fans act like they never cared about the guy I won't just throw him under the bus like they did.
Anything from round 3 onward can be chalked up to him just being out of there.

[Clegg]

since its not fair to compare their chins due to weight classes, maybe we should compare their hearts?

Prime Khan had more heart than AJ, 2019 Khan has less

[uppercut510]

I think something that happens to aj in sparring (him getting hurt or kod) really messes with his confidence n in fights once he gets hit hard he mentally folds. the punches that really destroyed aj were to the temple and to the body if you watch the 3rd n 6th round... aj is too muscular and I think him tiring out is more of his issue, when your tired your mind goes, his muscles are his worst enemy. I don't think his chin is glass but his mind is! however his chin isn't the best