GameStyle: Since the sport's inception in the early nineties, UFC has grown from a niche curiosity that Senator John McCain once dismissed as, ‘human cockfighting’, to become a billion dollar sporting empire broadcast in over 100 countries across the globe. PPVs in locations from London to Abu Dhabi attract millions of viewers at a time. Star names swagger to the Octagon swathed in commercial endorsements and UFC fans can buy themselves anything from trading cards to belt buckles. Human cockfighting is now very popular indeed.