Ben Affleck & Matt Damon show their cards for Darfur

via exposay.com

Once again, Ben Affleck showed his poker prowess in Vegas at the World Series of Poker tournament -- but this time, it wasn't just for bragging rights. 

Affleck and Boston bud Matt Damon joined a host of celebrities for a pre-July Fourth Ante up for Africa tournament with all celebrity winnings going to Darfur charities.