This Saturday the UFC returns to FOX for an extremely competitive card has a lot of title implications for the lower weight classes. This includes the battle of two of the best pound-for-pound fighters in the world in Demetrious Johnson and Joseph Benavidez.  These guys consistently put on great shows and, since they don’t have the power of the upper weights, beat the hell out of each other.  Here are the fights, I think, will be the most violent.  Here they are, in order, the 5 most violent fights at UFC on FOX 9.