Yesterday IGN officially announced Keith "The Dean of Mean" Jardine as a playable character on the UFC 2009 Undisputed roster, and today we're thrilled to announce that three more fighters on the UFC 96: Jackson vs. Jardine card will be joining him on the roster. We've also got an awesome new trailer featuring in-game footage of Jardine and his opponent in UFC 96's main event, Quinton "Rampage" Jackson.

And, be sure check back in to IGN tomorrow night, as I'll once again be blogging live from Octagon-side at UFC 96: Jackson vs. Jardine, and come back Monday for a full recap of the event, including coverage of the post-fight press conference and video interviews with more of your favorite UFC fighters. Also, be sure to mark your calendar for Friday, March 13, when the release date for UFC 2009 Undisputed will be revealed exclusively on!