I think Zhang might have some mild form of acromegaly or I don't know - something like acromegalic kind of built. He just seems so much bigger than Joyce, despite being the same height - thicker bones, larger frame, so much stronger. It was really similar with Hrgovic, he was just able to box better so he survived. It still felt like both of them just couldn't hurt him, looked like teenagers with a man. It looks like this kind of built (also Valuev, Mariusz Wach) gives you graet chin. I'm not taking anything away from Zhang's victories, as he's also skilled! Aby other examples of that built?