How's Joshua still relevant I guess the jury is still out until he proves himself against Usyk. But currently you'd have him at Dillians level probably just under.
I think AJ open that chin. He KO him absolutely brutally. Usually when a fighter is KO that bad, it's where he loses his durability. I think his chin was at very decent level before the AJ fight, but then goes like 5 levels below straight. AJ landed heavy, heavy shots all night long, before the KO. And then Povetkin obviously finish the job and shatter it for good. That was almost a glancing uppercut for god sake. Yeah uppercut is a shot that you very often don't see(which does the most damage), and it's straight on the chin, but that shot while being super fast by Fury did not landed fully. Which just tell you the level of Whyte chin.