United States forward Charlie Davies was injured in a deadly single-car accident in Virginia early on Tuesday.
Davies, 23, was in a stable condition having surgery and his undisclosed injuries were not considered life-threatening, said US soccer spokesman Neil Buethe, adding that a person in the car was killed.
"As a team we were saddened to learn this news," U.S. coach Bob Bradley told reporters. "Our thoughts and prayers go out to Charlie and Charlie's family as well as the people in the car and the families of the others involved."
Buethe said the accident occurred at about 0315 local time on the Virginia side of the George Washington Parkway. He was unable to say if Davies was the driver or a passenger.
The U.S., who have already clinched a place at the 2010 World Cup finals in South Africa, face Costa Rica on Wednesday at RFK Stadium in Washington in their final qualifier.
Davies, who also plays for French Ligue 1 side Sochaux, has made 17 appearances for the U.S., scoring four goals.