The fight game can get very personal. But the war of words between UFC lightweight champion "The Prodigy" BJ Penn and former champ Sean "The Muscle Shark" Sherk has taken personal to a whole new level. On Saturday, May 24th, the talking will stop and the real competition will begin as these two men step into the Octagon to determine the undisputed king of the 155-lb. division. Plus, the controversial "Huntington Beach Bad Boy" Tito Ortiz returns to the UFC to face undefeated Karate master Lyoto "The Dragon" Machida. Then, vicious strikers face off as Wanderlei "The Axe Murderer" Silva goes one on one with Keith "The Dean of Mean" Jardine.