The team includes a pair of players from Germany's Hertha Berlin (Bryan Arguez and Alfredo Morales) and MLS's FC Dallas (Josh Lambo and Anthony Wallace).
Along with Wallace, Jorge Flores of Chivas USA and Abdusalam Ibrahim from Toronto FC played in MLS this season.
Josh Hernandez (FC Dallas) and Tristan Bowen (Los Angeles Galaxy) are top prospects on MLS academy teams.
The U-20s are preparing for the CONCACAF Under-20 World Cup qualifying, which will take place in Trinidad early in 2009.
U.S. U-20 ROSTER:
GOALKEEPERS: Earl Edwards (Nomads, Calif.), Josh Lambo (FC Dallas).
DEFENDERS: Gale Agbossoumonde (IMG Academy, Fla.), Anthony Arena (Crossfire Premier, Wash.), Kyle Davies (Southampton/ENG), Zarek Valentin (PA Classics, Pa.), Anthony Wallace (FC Dallas).
MIDFIELDERS: Bryan Arguez (Hertha Berlin/GER), Jorge Flores (Chivas USA), Gregory Garza (Sporting Lisbon/POR), Josh Hernandez (Dallas, Texas), Jared Jeffrey (Club Brugge/BEL), Alfredo Morales (Hertha Berlin/GER), Giuseppe Nazzani (Reggio Emilia/ITA).
FORWARDS: Vincenzo Bernardo (Napoli/ITA), Tristan Bowen (Los Angeles Galaxy), Abdusalam Ibrahim (Toronto FC), Jose Torres (Loros de Colima/MEX).