On Saturday, January 31, 2009, the UFC returns to Sin City with UFC 94 - St-Pierre vs. Penn 2, which will take place at the MGM Grand Garden Arena in Las Vegas, Nevada. The main event features the rematch of the UFC welterweight champion Georges St-Pierre against the UFC lightweight champion B.J. Penn for the UFC welterweight title. This bout has been billed as "An Epic Battle Of Champions" as it features two of the greatest pound-for-pound fighters in the history of MMA. The co-main event features a light-heavyweight match between Lyoto Machida and Thiago Silva, who are both undefeated fighters with identical 13-0 records. This bout has hefty title shot implications, as the winner should get a shot at the newly crowned light-heavyweight champion Rashad Evans later this year. The event will air live on PPV at 10:00 p.m. EST / 7:00 p.m. PST.

Main Card:

-Georges St-Pierre vs. B.J. Penn (Welterweight Title Bout)

-Lyoto Machida vs. Thiago Silva (Light-Heavyweight Bout)

-Stephan Bonnar vs. Jon Jones (Light-Heavyweight Bout)

-Karo Parisyan vs. Dong Hyun Kim (Welterweight Bout)

-Nathan Diaz vs. Clay Guida (Lightweight Bout)

Preliminary Card:

-Jon Fitch vs. Akihiro Gono (Welterweight Bout)

-Jake O'Brien vs. Christian Wellisch (Light-Heavyweight Bout)

-Chris Wilson vs. John Howard (Welterweight Bout)

-Manny Gamburyan vs. Thiago Tavares (Lightweight Bout)

-Matt Arroyo vs. Dan Cramer (Welterweight Bout)