I see GSP out wrestling BJ all day. Bj's bjj is tops but it doesn't matter when you have an athlete like GSP who has A. way too much strength to capitalize on B. his wrestling is better than Bjs jitsu (which will result in a complete domination in terms of control) C. will wear BJ down to nothing. There's no way BJ's endurance will top GSPs. Not to mention he's bumping up in weight, and the "real" penn is at 155. Bj's hands are great but I only see him being a threat to GSP in the first round maybe second, after that, if it goes that far, GSP will win the later rounds without a doubt. For anyone who actually does mma, wrestling, jj, whatever as opposed to watching and thinking you might know, will understand that jiu jitsu opens a lot spots for anyone who can out wrestle their opponent, saying that bj will be taking risks looking for an omaplata or something but GSP is looking for subs and avoiding them and thus will find an opening and come through with great gnp. That's where he'll impose his will, on a tired GSP (as I said stamina will be one of the most important thing in this fight). Also, bj likes to throw the jab and has great boxing but GSP with his unorthodox kicking will take advantage of that and setup counters beautifully. For anyone saying GSP's not mentally in it, that's bs. BJ seemed more nervous to me in the interviews, talking a whole lot. I've been fighting mma/boxing for years at a pro level along with judo jiu jitsu and know for a fact, when guys run their mouths, it's usually out of the fact they're nervous. GSP beat him in the day when he was half of what he is now so I think that's good for him. He wasn't scared then and as a fighter he's only gotten better. I think it's going to be a great fight but don't see how Penn could win it