Credit to Mason though, he got back up and finished the fight with a KO. I can see the hype behind him but he's got alot of work to do.
Beterbiev was knocked down twice his career and was actually hurt. He’s not known for having a weak jaw these days. In Abdullah’s case, those were flash knockdowns by a heavy puncher. Wasn’t hurt at all. He’s good.
You could be right, which is why - at this point - I'm only rating his mandible as suspect, rather than as confirmed glass. But tasting canvas twice against an opponent of this caliber is not a good sign.
Punch resistance, yeah. He got flashed twice and was definitely rattled on one other occasion as well. Punch recovery looks to be pretty good, though. Had the wherewithal to drop his foe after getting rattled, and was back in control quickly after getting flashed on the second occasion. At present, this seems to be a Trinidad like chin than a Khan like chin.