Jon “Bones” Jones set a record Saturday night when he successfully defended his light-heavyweight championship atUFC 165 with a unanimous-decision victory over Alexander Gustafsson, who gave the New Yorker all he could handle at the Air Canada Centre in Toronto. In a battle that left both mixed martial artists battered and bloodied, Jones fought off a sixth challenger to eclipse the previous light-heavyweight record he shared with Tito Ortiz. It came at a cost. Both men left the arena and sought medical attention for their extensive injuries. Jones, though, had a victory by the narrowest of margins: 48-47, 48-47, 49-46.