https://www.youtube.com/watch?t=19&v=2EREniphwGo

So, I don’t think he was supposed to do that. Check out this old video of what seems to be former UFC lightweight champion Anthony Pettis KO’ing his coach Duke Rufus during training.

What do you guys think, real or fake?

UFC Fighters Give Us Their Favorite BJ Penn Moment! What’s Yours? — Must Watch![ooyala code=”JpN2pzdjqWA8WOLaJwwNHph5i6sCiLAA” player_id=”bd214e34cfad476984102de4bf5e8da2″ width=”1280″ height=”720″ auto=”true” autoplay=”true”]