Garza tore his anterior cruciate ligament whilst playing for University of Denver on Friday and will unfortunately miss the FIFA U20 World Cup which begins in Egypt on September 24.
Arguez becomes the third overseas-based player in Thomas Rongen’s squad which will travel to Cyprus in four days for a lead-up match with Australia before travelling to Suez, Egypt for the tournament.
The US team will come up against Germany, Cameroon and Korea Republic in the group stage.
The following is the USA U20 World Cup squad:
GOALKEEPERS: Sean Johnson (Central Florida; Lilburn, Ga.), Josh Lambo (FC Dallas; Middleton, Wis.), Brian Perk (UCLA; Rancho Santa Margarita, Calif.)
DEFENDERS: Gale Agbossoumonde (Miami FC; Syracuse, N.Y.), Kyle Davies (FC Dallas; Danville, Calif.), Aaron Maund (Notre Dame; Dorchester, Mass.), Ike Opara (Wake Forest; Durham, N.C.), Anthony Wallace (FC Dallas; St. Petersburg, Fla.), Sheanon Williams (Unattached; Boston, Mass.)
MIDFIELDERS: Bryan Arguez (Hertha Berlin, Miami), Danny Cruz (Houston Dynamo; Glendale, Ariz.), Mikkel Diskerud (Stabak; Oslo, Norway), Dilly Duka (Rutgers; Montville, N.J.), Jorge Flores (Chivas USA; Anaheim, Calif.), Jared Jeffrey (Club Brugge; Richardson, Texas), Brian Ownby (Virginia; Glen Allen, Va.), Dillon Powers (Notre Dame; Plano, Texas), Michael Stephens (UCLA; Naperville, Ill.)
FORWARDS: Peri Marosevic (FC Dallas; Rockford, Ill.), Brek Shea (FC Dallas; College Station, Texas), Tony Taylor (Jacksonville; Jacksonville, Fla.)