lesnar just doesnt have the tools to survive in the ufc, nobody is afraid of his one punch power and he doesnt have years of getting hit in the face to build up the toughness. he looks scared shitless in most of his fights and if he cant take someone down to the ground and lay on them and punch, hes fucked. too many big guys in the ufc that can defend him and have 1 punch ko power. dos santos, overeem, cain, maybe even someone like roy nelson could all take brock. probably another 1 or 2 im not thinking of. plus is health sucks too