U.S. fills out U23 roster for qualifying

CARSON, Calif. -- Goalkeepers Matt Lampson of Columbus and Brian Perk of Los Angeles have been added to the U.S. Under-23 training camp roster ahead of Olympic qualifying along with Stuttgart defender Royal-Dominique Fennell.

San Jose goalkeeper David Bingham and Estoril Praia defender Gale Agbossoumonde are injured and will not attend the training camp, coach Caleb Porter says Tuesday.

The group gathered Sunday and will scrimmage against the national team Friday and Jan. 17 before traveling Jan. 18 to San Jose, Costa Rica, for two matches against clubs.

The U.S. plays Cuba (March 22), Canada (March 24) and El Salvador (March 26) in North and Central American and Caribbean qualifying, with all games at Nashville, Tenn. The top two teams in the group advance to the semifinals on March 31 at Kansas City, Kan., and the semifinal winners qualify.