He is knocking out guys who have shown they have no chin he doesn't have some amazing megapunch.
I bet he could knock Badr "I can't win a K1 GP to save my life" Hari out if he connected.
Not saying that he ever would though.
Fedor, Mir, Lytle, Serra, Hendo, Chuck, Minowaman, Maynard, Forrest, Hunt
Pickett, Cerrone, Matt Brown, Bisping, Weidman, Barnett, Lawler