This punch happened in a fight between Nikko Glasper and Tommy Sthair and came out of nowhere in the 20th second. Nikko basically ran full tilt at Tommy Usain Bolt style and then smacked him straight in the kisser with a left hook. It was so explosive and powerful it ended the fight there and then.
Hopefully it won’t be long until Nikko gets scouted for the big leagues and the Usain Bolt punch becomes his special move/finisher. Oh wait, that doesn’t happen in actual fighting, right? Whatever happens, this will probably make it onto MMA’s most memorable knockouts list.