It's not a boxing vs MMA post, but I believe the Klitschko brothers would tear Overeem's head off in a boxing ring. In an MMA fight, Overeem would annihilate them. That's what he's trained his body and mind for. It's not overall size -- it's how well you use what you have + how well you finely tune your physical attributes to your craft in preparation. A 6'5 265 lb monster like Overeem would be susceptible to stamina issues if he boxed professionally.
+100 best post here i agree entirely with this however if vitali trained in his kickboxing skills abit better i think he could knock overeem out. :happy