One rising star in Major League Soccer is out and one is in for the Under-20 US national team bound for Argentina this month.

U.S. Soccer announced on Monday that head coach Tab Ramos has released San Jose Earthquakes forward Tommy Thompson so he can tend to club commitments and added Columbus Crew midfielder Romain Gall in his place, forcing Gall out of contention for the Crew’s matchup against Chivas USA on Sept. 6.

The call is the first for Gall (above) since participating in the NTC Invitational last July. The Crew signed Gall last month via weighted lottery.

Ramos also released Orlando City defender Tyler Turner because of a quadriceps injury, and named Chivas de Guadalajara defender Luis Martir as his replacement.

The team’s 10-day camp in Buenos Aires will include a matchup against the Racing Club reserves on Thursday before matches against the Defensa y Justicia reserves and the Argentine U-20s later in the trip.

US Under-20 Roster by Position:



GOALKEEPERS (2): Jeff Caldwell (Virginia; Todd, N.C.), Santiago Castaño (New York Red Bulls; Union City, N.J.)



DEFENDERS (7): Conor Donovan (North Carolina State; Fuquay Varina, N.C.), Chase Gasper (UCLA; Alexandria, Va.), Luis Martir (Chivas de Guadalajara; Los Angeles, Calif.), Matthew Miazga (New York Red Bulls; Clifton, N.J.), Shaquell Moore (Unattached; Powder Springs, Ga.), Erik Palmer-Brown (Sporting Kansas City; Lee’s Summit, Mo.), John Requejo Jr. (Club Tijuana; Carpinteria, Calif.)



MIDFIELDERS (7): Fernando Arce (Club Tijuana; Chula Vista, Calif.), Gboly Ariyibi (Chesterfield; Arlington County, Va.), Russell Canouse (TSG 1899 Hoffenheim; Lancaster, Pa.), Luis Felipe (Cruzeiro Esporte Clube; Ouro Branco, Minas Gerais), Junior Flores (Borussia Dortmund; Manassas Park, Va.), Romain Gall (Columbus Crew; Herndon, Va.), Joel Soñora (CA Boca Juniors; Buenos Aires, Argentina)



FORWARDS (3): Paul Arriola (Club Tijuana; Chula Vista, Calif.), Bradford Jamieson IV (LA Galaxy; Los Angeles, Calif.), Zach Pfeffer (Philadelphia Union; Dresher, Pa.)