Michael McDonald has nine knock-out and technical knock-out victories to his name. Nine. Not bad for a guy with a 16-3 MMA record. Now consider that he's fighting at 135lbs. McDonald is considered the heavy hitter of the bantamweight class. His only UFC losses have come to former champ Renan Barao and the always dangerous Urijah Faber. And other opponent's he's faced? "Mayday" has back-to-back true KO's of Alex Soto and Miguel Torres in the UFC. He also holds a knock-out win over Cole Escovedo under the Taichi Palace Fights banner (Escovedo was the first ever WEC featherweight champion, who would fight in the UFC at the end of his career). In the 135lb division, you'd be hard-pressed to find anyone who hits harder.