The end-of-the-year mixed martial arts binge continues with UFC 107 “Penn vs. Sanchez,” which airs live on pay-per-view this Saturday from the FedEx Forum in Memphis, Tenn., and gives the natives a much-needed respite from the putrid NBA franchise that calls The Bluff City home. The main card features Diego Sanchez and his super mean game face challenging reigning lightweight champion B.J. Penn, who has somehow won more fans by jumping out of a pool than by beating people up inside the cage. Go figure.