The giants of mixed martial arts invade Las Vegas for the last UFC show of 2011, and there will be plenty of thunder in the main event when former UFC heavyweight champion Brock Lesnar returns to welcome former Strikeforce heavyweight king Alistair Overeem to the Octagon. Literally one of the game's biggest superstars, Lesnar has never backed down from a challenge, and his showdown with Overeem: a world class striker with dynamite in his fists; proves it. It's the perfect way to end the year for fight fans.
Actor: Alistair Overeem
Actor: Brock Lesnar
Actor: Donald Cerrone
Actor: Nate Diaz