Justin Timberlake and Bill Murray play for laughs at golf tournament

The stars teamed up with professional players to offer golf fans some light relief as they completed a 10-hole challenge at the Medinah Country Club in Illinois, where the prestigious Ryder Cup is set to tee-off on Friday (28Sep12).

However, the celebrities took their game much less seriously than the professionals, with Caddyshack star Murray joking around in front the crowd as comedian George Lopez smoked a cigar and ordered beers for his team.

Lopez and swimmer Phelps eventually won the round, while Murray and his teammate Timberlake came second.