The first "UFC Primetime" special on the FX network will debut on Friday, January 20, 2012 at 11 p.m. ET. The following episdoes will air on January 27 and February 3. The special promotes the upcoming UFC 143 welterweight interim title bout between Nick Diaz and Carlos Condit at the Mandalay Bay Events Center in Las Vegas, Nevada.

The two are fighting for the right to hold champion Georges St. Pierre's belt until he returns from surgery to repair a torn ACL. GSP had to pull out of his scheduled UFC 137 title bout with Condit due to an injury on his other knee then tore his right knee while training for a UFC 143 title bout with Nick Diaz.

Condit got the call up to take GSP's place and it was decided to make it an interim title bout. St. Pierre has held the UFC welterweight title since beating Matt Serra at UFC 83 in 2008. He's made six successful title defenses in that time.

Dias is the former Strikeforce welterweight champion and came to the UFC to fight GSP. He was originally signed to fight for the title at UFC 137 but blew off two press conferences and was pulled from the title fight. Diaz ultimately ended up facing B.J. Penn and taking a three round decision in the Fight of the Night.

Condit has won four straight bouts in the UFC, with three straight by KO or TKO over Dong Hyun Kim, Dan Hardy and Rory MacDonald. He is the former WEC welterweight champion.