SANTANDER, Spain — U.S. defender Jonathan Spector will have surgery to repair a torn labrum in his right hip and will be sidelined three to six months, causing him to miss the Beijing Olympics.

In addition, forward Landon Donovan will miss the Americans' exhibition game against Spain on Wednesday night because of a tight groin, again delaying his 100th international appearance.

Spector, a 22-year-old with West Ham in England's Premier League, was traveling to Los Angeles to consult with U.S. team physician Michael Gerhardt, the U.S. Soccer Federation said Monday. Spector has not played in a match since April 12 against Bolton.

Donovan also missed the United States' 2-0 loss at England last week and the Los Angeles Galaxy's Major League Soccer match at Toronto last week.

The U.S. team dropped defender Michael Orozco and midfielder Ricardo Clark from its roster for the Spain game, leaving it with 20 players.

The Americans then meet Argentina on Sunday night at East Rutherford, N.J., their final match before opening World Cup qualifying against Barbados at Carson, Calif., on June 15.

The roster:

Goalkeepers: Dominic Cervi (no club), Brad Guzan (Chivas USA), Tim Howard (Everton, England)

Defenders: Carlos Bocanegra (no club), Dan Califf (Midtjylland, Denmark), Steve Cherundolo (Hannover, Germany), Jay DeMerit (Watford, England), Frankie Hejduk (Columbus), Oguchi Onyewu (Standard Liege, Belgium), Heath Pearce (Hansa Rostock, Germany)

Midfielders: Freddy Adu (Benfica, Portugal), DaMarcus Beasley (Glasgow Rangers, Scotland), Michael Bradley (Heerenveen, Netherlands), Maurice Edu (Toronto), Eddie Lewis (Derby, England), Pablo Mastroeni (Colorado)

Forwards: Clint Dempsey (Fulham, England), Nate Jaqua (no club), Eddie Johnson (Fulham, England), Josh Wolff (no club)