|UFC 2009 Undisputed is an explosive fighting game detailing the action, intensity and attitude of the Ultimate Fighting Championship (UFC). Featuring an authentic and comprehensive UFC atmosphere, including an extensive roster of the best mixed martial arts fighters in the world, players will push the envelope with a powerful new game engine and put their best fighting disciplines to the test in the world famous Octagon.
Heavyweights: Andrei Arlovski, Mark Coleman, Mirko "Cro Cop" Filipovic, Gabriel Gonzaga, Antoni Hardonk, Heath Herring, Cheick Kongo, Brock Lesnar, Justin McCully, Frank Mir, Antonio Rodrigo Nogueira, Eddie Sanchez, Tim Sylvia, Cain Velasquez, Brandon Vera and Fabricio Werdum
Light heavyweights: Houston Alexander, Ryan Bader, Tim Boetsch, Stephan Bonnar, Rashad Evans, Wilson Gouveia, Forrest Griffin, James Irvin, Quinton Jackson, Keith Jardine, Chuck Liddell, Lyoto Machida, Kazuhiro Nakamura, Tito Ortiz, Mauricio "Shogun" Rua, Thiago Silva and Wanderlei Silva
Middleweights: Ricardo Almeida, Michael Bisping, Kendall Grove, Rich Franklin, Dan Henderson (LHW), Martin Kampmann, Chris Leben, Thales Leites, Jason MacDonald, Demian Maia, Nate Marquardt, Drew McFedries, Yushin Okami, Amir Sadollah, Anderson Silva and Evan Tanner
Welterweights: Thiago Alves, Matt Arroyo, Kyle Bradley, Josh Burkman, Marcus Davis, Jon Fitch, Matt Hughes, Anthony Johnson, Josh Koscheck, Chris Lytle, Karo Parisyan, Diego Sanchez, Ben Saunders, Matt Serra, Georges St. Pierre and Mike Swick
Lightweights: Mark Bocek, Rich Clementi, Mac Danzig, Nathan Diaz, Frankie Edgar, Efrain Escudero, Spencer Fisher, Kenny Florian, Hermes Franca, Tyson Griffin, Roger Huerta, Joe Lauzon, Gray Maynard, B.J. Penn, Sean Sherk, Joe Stevenson and Thiago Tavares