Vitor Belfort hit an explosive spinning heel kick on Luke Rockhold in the first round Saturday Night in Brazil, knocking the former Strikeforce Middleweight Champion out, and putting the veteran Belfort in line for another title shot. Is this the greatest knockout of all-time? Or in the history of the UFC? I am not sure, but it is close, Rockhold did not see the kick coming and it caught him right in the chin. What impact! Add another devastating knockout to the long list that Belfort has accumulated over his career, this may be his best, the power of that kick was incredible. I could watch this kick a thousand times straight, that my friends is how you throw a spinning heel kick, the placement is perfect.