That seems to be bandwagon agreement among boxing purists, writers, as well as ex-heavyweights. It think it's very much exaggerated. It's not as if other sports are the only other option for people who happen to be big. What about construction or some other physically inducing occupation? People get so caught up in stuff like this and believe it's absolute truth. "Megatron could have been a beast as a boxer". How do you know that? Especially since the sports require an almost completely different set of skills and discipline.