The UFC has released an extended preview for this month's UFC 137 event. In the main event of the evening it will be Georges St. Pierre defending his UFC welterweight championship against Carlos Condit. The co-headline bout of the evening is another welterweight scrap as B.J. Penn meets Nick Diaz. There is plenty of other great action on the show as heavyweights Matt Mitrione and Cheick Kongo square off and Hatsu Hioki makes his UFC debut against George Roop.
UFC 137 takes place October 29, 2011 live from the Mandalay Bay Events Center in Las Vegas, Nevada.