The latest UFC 137 fight card and rumors for 'Penn vs Diaz' from the Mandalay Bay Events Center in Las Vegas, Nevada, on Oct. 29, 2011. Fight card subject to change.

Brad Tavares vs Dustin Jacoby promoted to UFC 137 pay-per-view card after Georges St. Pierre injury creates an empty slot.

Latest UFC on FOX Sports 1 fight card rumors for network television debut on Saturday Nov. 12, 2011, from the Honda Center in Anaheim, California.

UFC on Versus 6: Veterans Josh Neer and Keith Wisniewski looking to return on Oct. 1

MMAmania's Brian Hemminger breaks down the upcoming UFC on Versus 5 main event between scrappy welterweights Chris "Lights Out" Lytle and Dan "The Outlaw" Hardy. Who will come out on top on Sunday night?

MMAmania's Brian Hemminger breaks down the upcoming co-main event of UFC on Versus 5, a lightweight showdown between Jim Miller and Ben "Smooth" Henderson. Can Miller finally earn his title shot with a victory?

MMAmania's Brian Hemminger previews the upcoming UFC on Versus 5 welterweight match-up between Ultimate Fighter season seven winner Amir Sadollah and veteran kickboxer Duane "Bang" Ludwig.

MMAmania's Brian Hemminger previews tonight's main event of UFC 133 between former light heavyweight champions Tito Ortiz and "Suga" Rashad Evans. How can each man win? Find out inside.

UFC 133 fight card: Vitor Belfort vs Yoshihiro Akiyama

UFC 133 fight card: Brian Ebersole vs Dennis Hallman preview