UFC pummels stores May 19

It's been more than two years since THQ first revealed it had the license to make Ultimate Fighting Championship games. Befitting the mixed martial arts' Octagon-contained competition, the publisher has been appropriately "cagey" with details since. However, this week THQ finally confirmed some key specifics, announcing the release date, cover athletes, and complete roster for the long-awaited UFC 2009: Undisputed.

The first UFC game in more than five years will arrive on the PlayStation 3 and Xbox 360 on May 19. Although much of the game's promotion to date has focused on fighters such as Quinton "Rampage" Jackson and Chuck Liddell, Undisputed will arrive on American store shelves featuring Forrest Griffin, former light heavyweight champion and winner of the first season of Spike TV's The Ultimate Fighter. Meanwhile, Canadian UFC fans will be able to pick up the game fronted by Quebec native and current welterweight champion Georges St-Pierre.

For more on the game, check out GameSpot's exclusive UFC interview. The full list of 80 fighters--with an additional two downloadable combatants available for those who preorder from specialty retailer GameStop--follows below.

HEAVYWEIGHT DIVISION
Antonio Rodrigo Nogueira
Brock Lesnar
Frank Mir
Brandon Vera (can switch to Light Heavyweight)
Gabriel Gonzaga
Cain Velasquez
Cheick Kongo
Eddie Sanchez
Heath Herring
Andrei Arlovski
Mirko Crocop
Fabricio Werdum
Tim Sylvia
Mark Coleman
Antoni Hardonk
Justin McCully

LIGHT HEAVYWEIGHT DIVISION
Chuck Liddell
Quinton "Rampage" Jackson
Forrest Griffin
Tito Ortiz
Keith Jardine
Wanderlei Silva
Mauricio "Shogun" Rua
Lyoto Machida
Rashad Evans
Stephan Bonnar
James Irvin
Wilson Gouveia (can switch to Middleweight)
Houston Alexander
Kazuhiro Nakamura
Thiago Silva
Tim Boetsch
Ryan Bader (downloadable content -- GameStop exclusive)

MIDDLEWEIGHT DIVISION
Anderson Silva (can switch to Light Heavyweight)
Rich Franklin (can switch to Light Heavyweight)
Dan Henderson (can switch to Light Heavyweight)
Michael Bisping (can switch to Light Heavyweight)
Kendall Grove
Chris Leben
Jason MacDonald
Nate Marquardt
Drew McFedries
Ricardo Almeida
Evan Tanner
Yushin Okami
Demian Maia
Martin Kampmann (can switch to Welterweight)
Amir Sadollah (can switch to Welterweight)
Thales Leites

WELTERWEIGHT DIVISION
Georges St-Pierre
Matt Hughes
Matt Serra (can switch to Lightweight)
Jon Fitch
Karo Parisyan
Josh Koscheck
Diego Sanchez
Mike Swick (can switch to Middleweight)
Marcus Davis
Thiago Alves
Chris Lytle
Ben Saunders
Josh Burkman
Kyle Bradley
Matt Arroyo
Anthony Johnson

LIGHTWEIGHT DIVISION
BJ Penn (can switch to Welterweight)
Sean Sherk (can switch to Welterweight)
Kenny Florian
Roger Huerta
Joe Stevenson
Mac Danzig
Nathan Diaz
Spencer Fisher
Tyson Griffin
Gray Maynard
Thiago Tavares
Joe Lauzon
Rich Clementi
Mark Bocek
Hermes Franca
Frank Edgar
Efrain Escudero (downloadable content -- GameStop exclusive)