In his last fight, UFC Light Heavyweight champion Jon Jones almost lost his title in a freak occurrence against when Chael Sonnen broke his toe at UFC 159. Saturday night, Jones put his title on the line again against Alexander Gustafsson at UFC 165.
Despite the close calls of Sonnen and Belfort, Gustafsson proviced the toughest challenge Jones has seen since taking the belt from Shogun Rua at UFC 129. Alexander landed more significant strikes against Jones than any other challengers combined, but, it wasn't enough for Gustafsson to take the title.
Take a look back at the action to see how Jones responded to the toughest challenge he's ever faced.