pound for pound as good as royce was, I just don't see him having aNY chance. Tyson would only have to land one punch. people overlook how good tyson's jab was becasue he WAS an inside fighter...but that inside destruction was always against taller oponents. He wouldn't have had to fight Royce on the inside. He could have kept Royce back with the jab and simply looked to land that one shot that would have ended things instantly.

The guy I'd give the most chance to against Tyson would be Ken Shamrock, but only because he was so strong. I don't think Royce would have been strong enough to haul Tyson to the mat even if he COULD get in on Mike, but Shamrock had such super human strength. But again, all those mma guys, ever the greats, would still have to get past the boxers hands, and that's no so easy, IMO.

Again, we're talking the great boxers. Not the chump that transitioned to mma because their title shot was never coming.