The sport's titans battle it out in bone-crunching action from the Mandalay Bay Events Center in Las Vegas as middleweight champ Anderson Silva squares off against Travis Lutter, winner of Ultimate Fighter 4. Undercard matches include Quinton "Rampage" Jackson vs. Marvin Eastman, Eddie Sanchez vs. Mirko "Cro Cop" Filipovic, Patrick Cote vs. Scott Smith, and John Halverson vs. Roger Huerta, plus four preliminary bouts.