Not sure if this in covered anywhere else, but found this.
Garnett on video
2K Sports will announce today that Garnett will be featured as the cover athlete and spokesman for the video game, NBA 2K9. "NBA 2K is where it's at. End of story," Garnett said in a statement. "It's the game I play, the game my friends play, and the game anyone in the league serious about video games plays. NBA 2K is the real deal, and until 2K Sports finds a way to plant an elbow in your chest, it's the closest thing to actually being there on the court. I can't tell you how pumped I am to be on the cover of NBA 2K9 - it's a real honor. Now watch out because this fall 2K Sports and I are going to deliver the best basketball video game out there, period."
http://www.boston.com/sports/basketball/celtics/articles/2008/06/06/tough_ticket_to_come_by/?page=2