Colleen Shannon Follow

Celebrities turned out Wednesday to donate to Darfur charities - and to show their fellow stars just who the real card sharks were. Matt Damon plays in the Ante Up For Africa charity poker tournament during the World Series of Poker at the Rio hotel and casino in Las Vegas, Wednesday, July 2, 2008. Shannon Elizabeth, left, and Charles Barkley arrive at the "Ante Up For Africa" charity poker tournament during the World Series of Poker at the Rio Hotel and Casino in Las Vegas, Wednesday, July 2, 2008. Jason Alexander, left, Matt Damon and Ben Affleck arrive at the Ante Up For Africa charity poker tournament during the World Series of Poker at the Rio hotel and casino in Las Vegas, Wednesday, July 2, 2008. Actor Jason Alexander arrives at the "Ante Up For Africa" charity poker tournament during the World Series of Poker at the Rio Hotel and Casino in Las Vegas, Wednesday, July 2, 2008. Actor Don Cheadle arrives at the "Ante Up For Africa" charity poker tournament during the World Series of Poker at the Rio Hotel and Casino in Las Vegas, Wednesday, July 2, 2008.