The exclusion of Matt Hughes from the roster is perhaps the biggest disappointment as far as former UFC fighters are concerned. Hughes is one of the most dominant UFC champions ever, winning nine total championship bouts while holding seven total title defenses. He's tied for the most victories in UFC history with 18 wins, and he has notable wins over some of the greatest fighters—such as Royce Gracie, BJ Penn and George St. Pierre—in UFC history.