[U.S. UNDER-18 MEN] Philadelphia Union midfielder Zach Pfeffer is among the players called up for the U-18 U.S. men's national team training camp that begins Sunday at The Home Depot Center. The camp is the first since Spaniard Javier Perez has been named head coach.

Pfeffer, 17, made his first MLS appearance in 2011, starting in a 1-0 victory against the Columbus Crew on Sept. 17. Pfeffer also started in Philadelphia's regular-season finale against the New York Red Bulls.

The squad also includes four former U-17s now based abroad: Mobi Fehr (Basel FC), Matt Dunn (OFK Belgrade), Alejandro Guido (Tijuana) and Stevie Rodriguez (Tijuana).

U.S. Roster:
GOALKEEPERS (4): Santiago Castano (New York Red Bulls academy), Ethan Horvath (Stoke City/ENG), Zackary Steffen (Philadelphia Union academy), Jacole Turner (Sporting KC academy).

DEFENDERS (11): Miguel Alves (PDA), Robert Amick (De Anza Force), Suliaman Dainkeh (D.C. United academy), Mobi Fehr (Basel FC/SWI), Dylan Greenberg (Albertson), Trevor Haberkorn (Solar Chelsea), Matthew Habrowski (CSA Wolves), Malcolm Harris (Baltimore Bays Chelsea), Jalen Markey (Seattle Sounders academy), Jose Ocampo (Crossfire Premier academy), Miguel Polley (Chicago Fire academy).

MIDFIELDERS (11): Marco Delgado (Chivas USA academy), Matt Dunn (OFK Belgrade/SER), Alejandro Guido (Tijuana/MEX), Romilio Hernandez (Baltimore Bays Chelsea), Koty Millard (S.C. United Battery), Antonio Murrillo (Downtown Rapids Las Vegas), Adam Najem (New York Red Bulls academy), William Raygoza (LA Galaxy academy), Kristian Scott (Stoke City/ENG), Dillon Serna (Colorado Rapids academy), Stefanos Stemoulacatos (Empire).

FORWARDS (9): Jordan Allen (RSL Arizona), Paul Arriola (Arsenal FC), Cristian Cruz (San Jose Earthquakes academy), Benjamin Lopez (RSL Arizona), Andrew Oliver (Chicago Fire academy), Zach Pfeffer (Philadelphia Union), Stevie Rodriguez (Tijuana/MEX), Ben Spencer (Chivas USA academy), Jamie Villareal (Los Angeles Galaxy academy).