He might beat Pulev. Nunn at his best wins a decision in a dreary bout. Southpaw style helps and Roy does not land enough against that southpaw. Wilder knocks him out bad. Wilder isn't pretty but one thing he does have is conditioning. He keeps that power throughout a fight & we've seen Roy not holding up to well late in the absorbing department. And interestingly, he never was asked to absorb much and those guys are no where near the hitter a guy like Wilder is.