No Doubt – Penn Halts Sherk, retains UFC Lightweight Crown

Thomas Gerbasi, UFC - Undisputed. UFC lightweight champion BJ Penn likes the sound of that, and after turning back the challenge of former champ Sean Sherk via third round TKO tonight in the UFC 84 main event at the MGM Grand Garden Arena, he can be content in the fact that there are no more questions - either about his cardio or his claim to the title. (link)