The U.S. is the defening champion. They need to win 17 points to retain the Cup, the Internationals need to win 17 1/2 points to win it.
Day 1 Foursomes (All times Eastern):
Match 1: 1:15 p.m. -- Steve Stricker and Hunter Mahan, United States, vs. Geoff Ogilvy and Adam Scott, International.
Match 2: 1:25 p.m. -- Phil Mickelson and Woody Austin, United States, vs. Vijay Singh and Mike Weir, International.
Match 3: 1:35 p.m. -- Stewart Cink and Zach Johnson, United States, vs. Trevor Immelman and Rory Sabbatini, International.
Match 4: 1:45 p.m. -- Jim Furyk and David Toms, United States, vs. Ernie Els and Angel Cabrera, International.
Match 5: 1:55 p.m. -- Scott Verplank and Lucas Glover, United States. vs. Stuart Appleby and Retief Goosen, International.
Match 6: 2:05 p.m. -- Tiger Woods and Charles Howell III, United States, vs. K.J. Choi and Nick O'Hern, International.