UFC veteran Mark Munoz is planning to retire after his bout with Luke Barnatt at Fight Night Manila. Go back in time with "The Filipino Wrecking Machine," as he looks at the top three fights of his UFC career.

UFC veteran and TUF original Chris Leben announced his retirement from mixed martial arts Monday. He sits with MMAFighting's the MMA Hour to discuss his decision and where he goes from here.

Check out a day in the life of UFC star Chris 'The Crippler' Leben as he prepares for UFC 168 - filmed by Intravid.com.

UFC middleweight Mark Munoz recounts the bout that reshaped his career and his confidence - his UFC 138 main event war with Chris Leben.

Are you ready for the biggest night in UFC history?

Headliners Chris Leben and Mark Munoz have to be separated at weigh-ins the day before their five-round fight at UFC 138.

See the full UFC 138 weigh-in that took place Friday, November 4 in Birmingham, England.

Knockout artists are on the loose in Birmingham! Hear from Mark Munoz, Chris Leben, Brad Pickett, Renan Barao, Terry Etim and Edward Faaloloto, all of whom have their eyes on the KO of the Night prize.

Watch Mark Munoz as he prepares for his next fight against Chris Leben at UFC® 138. In this Up Close and Personal segment, Mark talks about his MMA career as he trains with teammate UFC fighter Krzysztof Soszynski.

The Crippler has a message for Mark Munoz and for fight fans about how things will end Saturday night in Birmingham.

"I want to take the fight to where I'm best." Hear why Mark Munoz believes he has the perfect style to give Chris Leben fits in their main event matchup at UFC® 138.