Las Vegas, NV (USA) – On November 15th, the champ is back. Ultimate Fighting Championship President Dana White today announced that after a year away from the game, UFC® heavyweight champion Randy "The Natural" Couture will make his long-awaited return to the Octagon to defend his title against rising star Brock Lesnar in a clash of titans destined to shake the foundations of the sport. This championship bout, the biggest heavyweight title fight in years, will headline UFC 91: COUTURE vs. LESNAR, live from the MGM Grand Garden Arena in Las Vegas on Saturday, Nov. 15, 2008.