The Reem's chin has always been the worry when it came to him stepping up to the top competition. That's why a lot of guys were saying Fedor would have beaten him. One big bomb right hand from Fedor, and that would have been it. Overeem really needs to re-consider whether he wants to continue fighting, he's now been brutally knocked out by Hoffman, Liddell, Shogun twice, Kharitonov, Big Foot and Browne, that's a hell of a lot of head trauma. Especially when you add in the Hari and Feitosa knockouts, and all the other punishment he's taken in other fights, and in brutal sparring in Holland. Time to hang the gloves up Reem.