With all due respect to Frazier, Tyson would win this as he was bigger, stronger and faster. Tyson would land that uppercut like he did with Frazier’s son and have him out of there. Tyson had a good time with short stocky fighters like Buster Matthis Jnr and Bruce Seldon. Tyson came at angles against them to get his punches off. There was no quit is Joe, but think the ref would have to stop the one way beating.