UFC 2009 Undisputed

Very time consuming achievement. You don't have to win the fight. The lists are below.

Heavyweight:

• Andrei Arlovski
• Tim Sylvia
• Cain Velasquez
• Eddie Sanchez
• Brandon Vera (Can also be used at Light Heavyweight)
• Cheick Kongo
• Garbiel Gonzaga
• Minotauro Nogueira
• Frank Mir
• Brock Lesnar
• Justin McCully
• Antoni Hardonk
• Fabricio Werdum
• Mirko Cro Cop
• Mark Coleman
• Heath Herring

Light Heavyweight:

• Chuck Liddell
• Rampage Jackson
• Forrest Griffin
• Rashad Evans
• Kazuhiro Nakamura
• Tim Boetsch
• Houston Alexander
• Wilson Gouveia
• James Irvin
• Thiago Silva
• Stephan Bonnar
• Michael Bisping
• Brandon Vera (Can also be used at Heavyweight)
• Shogun Rua
• Dan Henderson (Can also be used at Middleweight)
• Keith Jardine
• Rich Franklin (Can also be used at Middleweight)
• Lyoto Machida
• Tito Ortiz
• Wanderlei Silva
• Anderson Silva (Can also be used at Middleweight)

Middleweight:

• Damian Maia
• Wilson Gouveia (Can also be used at Light Heavyweight)
• Yushin Okami
• Evan Tanner
• Jason MacDonald
• Mike Swick (Can also be used at Welterweight)
• Kendall Grove
• Chris Leben
• Nate Marquardt
• Michael Bisping (Can also be used at Light Heavyweight)
• Dan Henderson (Can also be used at Light Heavyweight)
• Rich Franklin (Can also be used at Light Heavyweight)
• Anderson Silva (Can also be used at Light Heavyweight)
• Amir Sadollah (Can also be used at Welterweight)
• Drew McFedries
• Martin Kampmann (Can also be used at Welterweight)
• Ricardo Almeida
• Thales Leites

Welterweight:

• Georges St-Pierre
• Amir Sadollah (Can also be used at Middleweight)
• Ben Saunders
• Kyle Bradley (Can also be used at Lightweight)
• Anthony Johnson
• Martin Kampmann (Can also be used at Middleweight)
• Matt Arroyo
• Marcus Davis
• Josh Burkman
• Chris Lytle
• Thiago Alves
• Mike Swick (Can also be used at Middleweight)
• Karo Parisyan
• Jon Fitch
• Diego Sanchez (Can also be used at Lightweight)
• Josh Koscheck
• Sean Sherk (Can also be used at Lightweight)
• Matt Serra (Can also be used at Lightweight)
• BJ Penn (Can also be used at Lightweight)
• Matt Hughes

Lightweight:

• Nate Diaz
• Diego Sanchez (Can also be used at Welterweight)
• Roger Huerta
• Matt Serra (Can also be used at Welterweight)
• Kenny Florian
• Joe Stevenson
• Sean Sherk (Can also be used at Welterweight)
• BJ Penn (Can also be used at Welterweight)
• Kyle Bradley (Can also be used at Welterweight)
• Mark Bocek
• Thiago Tavares
• Joe Lauzon
• Rich Clementi
• Gray Maynard
• Hermes Franca
• Frank Edgar
• Tyson Griffin
• Spencer Fisher
• Mac Danzig