I hope he trained how to fight while walking backwards as that seems to be his biggest weakness. It is completely possible, he still has all the power he had before, but he just needs to be ready to face the diversity that UFC offers (HA!), but in reality he needs to practice with wrestlers. Seriously, wrestlers, lots of them and of all types. If he plans on winning more than 1 fight in a row at HW he will need to be ready for when the fight hits the ground, no rings to go under here, your shoulders get forced up against the cage and then things get hard.