UFC 137: B.J. Penn Vs. Nick Diaz Media Conference Call

Join MMA Nation today at 2 p.m. ET/11 a.m. PT as we bring you live coverage and analysis of the UFC 137 media conference call. According to an official press release issued on Monday, today's call was intended to feature B.J. Penn and Nick Diaz, as well as UFC welterweight champion Georges St. Pierre and number-one contender Carlos Condit. However, due to the unexpected nature of St. Pierre's injury and subsequent removal of both he and Condit from the card, new co-headliners Matt Mitrione and Cheick Kongo have been added to the dias.

Along with live updates and notable quotes, we will provide you with full audio of the call inside this StoryStream. UFC 137 is slated for October 29, 2011 at the Mandalay Bay Events Center in Las Vegas, Nevada. For more analysis, follow MMA Nation (@MMANation) and Shaun Al-Shatti (@shaun_alshatti) on Twitter.

The UFC 137 fight card is as follows:

Main card:
Welterweight: B.J. Penn vs. Nick Diaz 
Heavyweight: Cheick Kongo vs. Matt Mitrione
Heavyweight: Mirko Filipović vs. Roy Nelson
Middleweight: Brad Tavares vs. Dustin Jacoby
Featherweight: Hatsu Hioki vs. George Roop

Preliminary card (Spike TV):
Lightweight: Dennis Siver vs. Donald Cerrone
Featherweight: Tyson Griffin vs. Bart Palaszewski

Preliminary card (Facebook):
Bantamweight: Scott Jorgensen vs. Jeff Curran
Light Heavyweight: Brandon Vera vs. Eliot Marshall
Lightweight: Ramsey Nijem vs. Danny Downes
Middleweight: Chris Camozzi vs. Francis Carmont