Just taken out of his comfort zone!
It's no shock that the rematch has to be in the UK.
He could easily lose the rematch. He has a glass jaw.
He doesn't though. Ruiz didn't KO him. Joshua was knackered and discombobulated. If he had a glass chin he would have been laid flat out. This entire 'glass chin' thing actually pisses me off (not directed at you Fordy mate, just a general observation). As I mentioned in a previous post, lots of great fighters have hit the canvas, many greats have been KO'd.
The likes of Joe Louis, Joe Frazier, even Sugar Ray Robinson, have all been KO'd. Lennox Lewis is arguably the best HW of the last 25 years but was KO'd brutally twice. Does he have a 'glass chin'? I genuinely don't think Amir Khan has a glass chin either. If you look at his KO losses, they have all been huge punches to primarily big punchers (Prescott's winger would have taken down almost anyone at 135, Garcia was a counter to the temple I think, and Canelo is a much bigger guy who landed flush).
To suggest someone has a glass chin states he goes down every time a decent punch lands on him. In most cases, the problem isn't the ability to take a good shot, it is poor defence, a failed attack where a counter shot they didn't see coming lands, or tiredness. There are very few fighters with glass chins, and practically none at the top level. My opinion anyway.