I'm so impressed by this kid. He must have so much heart and determination. I wish Dana would give him a shot against a UFC fighter. If he wins give him a contract. If he loses then he can move on or offer him a shot on TUF. Dana did not seem interested before but now may reconsider.
He won the XFC championship in around 1 minute. Here is the video:
Professional fighters at the UFC level will gameplan for him not having a hand on that side of his body. He can expect a ton of leg kicks to that side because he is less likely to grab and go for the takedown. Also he only has one hand to move away from in the standup. Top level strikers will pick him apart in the standup.
But from what I've read that nub gives him an advantage in many ways on the ground. On heel heeks the opponent doesn't have a forearm to grab and its supposedly nearly impossible to keep him using that on chokes.
According to sherdog he has auditioned for TUF twice and didn't get on because (1) He wouldn't fight at 145 and (2) He was a last minute cut.