Jack and Phil Mickelson play a spirited game of ping-pong during some rare down time at the U.S. team cottage. (Photo by Scott Tolley)

Jack and NBC's Jimmy Roberts chat on the porch outside the U.S. team cottage. (Photo by Scott Tolley)

Jack and NBC's Jimmy Roberts chat on the porch outside the U.S. team cottage. (Photo by Scott Tolley)

The golf bags of U.S. players Fred Couples and Tiger Woods sit beside a green during practice for the Presidents Cup golf tournament at the Robert Trent Jones Golf Club in Gainesville, Virginia, September 21, 2005. Woods and Couples are expected to be paired together when the tournament starts on September 22. REUTERS/Shaun Best

Presidents Cup U.S. team member Chris DiMarco (R) hits an approach shot to the sixth green as captain Jack Nicklaus looks on during the second day of practice rounds at the Robert Trent Jones Golf Club in Gainesville, Virginia, September 21, 2005. The last time the two squads ofU.S and international professionals met, in 2003 in South Africa, the matches ended in a tie. REUTERS/Jonathan Ernst

Presidents Cup American captain Jack Nicklaus (L) and team member Phil Mickelson (R) have a light-hearted chat on the fifth green during the second day of practice rounds at the Robert Trent Jones Golf Club in Gainesville, Virginia, September 21, 2005. The last time the two squads of American and international professionals met in 2003 in South Africa, the matches ended in a tie. REUTERS/Jonathan Ernst

Presidents Cup American team captain Jack Nicklaus (R) walks up to the sixth green with players Phil Mickelson (L) and Jim Furyk (C) during the second day of practice rounds at the Robert Trent Jones Golf Club in Gainesville, Virginia, September 21, 2005. The last time the two squads of American and international professionals met in 2003 in South Africa, the matches ended in a tie. REUTERS/Jonathan Ernst

Jim Furyk, left, helps United States teammate Fred Funk on the sixth green during practice for the Presidents Cup Wednesday, Sept. 21, 2005, in Gainesville, Va. (AP Photo/Chuck Burton)