Gene Tunney barely survived Dempsey, who was a smaller, less tenacious, less skilled, not as hard cracking version of Marciano. And yes, I understand Marciano was small and not incredible skilled. And yes I realizee Dempsey hit hard, and was damn tenacious. All of my points still stand. Tunney would not last three rounds with the rock.

Ok that alright and all but i think Dempsey was faster then rock as well