Interviews - UFC 137 - Penn vs. Diaz - Tyson Griffin recently made the drop to featherweight after twelve fights in the UFC at lightweight. In his first fight at 145 pounds, Griffin defeated former number one contender, Manny Gamburyan via unanimous decision.In the video, Griffin talks about and trains for his upcoming fight in his hometown of Las Vegas against Bart Palaszewski at UFC 137. He is shown sparring with Xtreme Couture stable mates Brad Tavares, Mac Danzig and Mike Chandler among others.