[OLYMPIC COUNTDOWN] In perhaps the last major test before U.S. women's national team coach Pia Sundhage picks her squad for the 2008 Olympics. the U.S. women open play Sunday at the 2008 Peace Queen Cup in Suwon, South Korea.

Sundhage took 21 players to Korea, where the USA opens play against Australia.

Defender Cat Whitehill suffered an ACL injury while training with the team in Korea, putting her out of Olympic contention. She was replaced by Stephanie Cox.

Whitehill was a 2004 gold medalist and played every minute for the USA at the 2007 Women's World Cup.

Last month, lost USA lost midfielder Leslie Osborne to an ACL injury.

The Olympic roster will consist of 18 players and three alternates.

U.S. Women's National Team Roster
GOALKEEPERS: Nicole Barnhart (Gilbertsville, Pa.), Briana Scurry (Dayton, Minn.), Hope Solo (Richland, Wash.);

DEFENDERS: Rachel Buehler (Del Mar, Calif.), Lori Chalupny (St. Louis, Mo.), Kate Markgraf (Bloomfield Hills, Mich.), Heather Mitts (Cincinnati, Ohio), Christie Rampone (Point Pleasant, N.J.), Stephanie Cox (Elk Grove, Calif.), (Birmingham, Ala.).

MIDFIELDERS: Shannon Boxx (Redondo Beach, Calif.), Tobin Heath (Basking Ridge, N.J.), Angela Hucles (Virginia Beach, Va.), Carli Lloyd (Delran, N.J.), Heather O'Reilly (East Brunswick, N.J.), Lindsay Tarpley (Kalamazoo, Mich.), Aly Wagner (San Jose, Calif.), Kacey White (Arlington, Texas);

FORWARDS: Lauren Cheney (Indianapolis, Ind.), Natasha Kai (Kahuku, Hawaii), Amy Rodriguez (Lake Forest, Calif.), Abby Wambach (Rochester, N.Y.).