Mexico, Japan and Brazil are also sending national teams, while Chivas USA and the Houston Dynamo will also be represented in the tournament, which begins Friday.
Thomas Rongen's team includes a pair of U-17 World Cup veteran goalies in Maryland's Zac MacMath, who started two games at the 2007 event in Korea Republic, and Earl Edwards, who went the distance in all four games in Nigeria 2009 and is now enrolled at UCLA.
Edwards, McInerney and Herold are among 11 players from the 2009 U-17s to make the jump to the U-20s for this trip.
GOALKEEPERS (2): Earl Edwards (UCLA), Zac MacMath (Univ. of Maryland)
DEFENDERS (7): Michael Ambrose (FC Dallas Juniors), Bryan Gallego (N.Y. Red Bulls Academy), Moises Hernandez (FC Dallas Juniors), Zach Herold (Toronto FC), Perry Kitchen (Univ. of Akron), Emilio Orozco (Rampage FC), Eriq Zavaleta (FC Pride)
MIDFIELDERS (6): Marlon Duran (Latino Americano), Luis Gil (Pateadores), Fuad Ibrahim (Toronto FC), Carlos Martinez (Wilmington Jr.), Amobi Okugo (Philadelphia Union), Nick Palodichuk (Washington Premier)
FORWARDS (5): Juan Agudelo (N.Y. Red Bulls Academy), Andrew Craven (First Coast Kickers), Victor Chavez (Real So Cal), Stefan Jerome (West Pines United FC), Jack McInerney (Philadelphia Union)