Not to slightly change the subject, but I thought GSP would have beaten Matt had they stayed on their feet. For whatever reason he decided to shoot in and then left himself open for that arm-bar. I think in a rematch he'll win.
Royce definitely can't stand with Matt but I think he can still submit him. If he can consistently bring the fight to the mat I think it's gonna be boring, since he's good at locking up ground-and-pounders.