Gedion Zelalem, Rubio Rubin and Emerson Hyndman are among the 24 players United States under-23 men’s national team head coach Andi Herzog has selected for the team’s upcoming camp in Manchester, U.S. Soccer announced today. The 10-day camp — the team’s final camp before 2016 Olympic qualifying in October — begins on Aug. 30 and includes friendlies against England and Qatar.

The 18-year-old Zelalem, having recently moved on loan from Arsenal to Rangers, will be looking to make his seventh and eighth appearances for the U.S., his six previous caps coming a under-20-level.

SEE MORE: Zelalem is joining a distinguished U.S. men’s national team history at Rangers

Rubin, having just completed his first season with Utrecht in the Dutch Eredivisie, already has three senior national team caps, while Fulham midfielder Hyndman made his senior team debut in Aug. 2014.

Among the other prominent invitees who’ll try to earn a spot on the U.S.’s qualifying roster are Real Salt Lake’s Luis Gil, Columbus Crew midfielder Will Trapp and Tottenham defender Cameron Carter-Vickers.

“These are two important games here because they are our last before the Olympic Qualifying tournament,” Herzog said, in a statement distributed by U.S. Soccer. “We have a strong group of players that we believe in, and now we are able to look as some of the guys who did very well with our U-20 team. This is really the last chance for all of the players to make an impression before we select the final roster for qualifying.”

The U.S. failed to qualify for the 2012 Summer Olympics, with a team led by current Portland Timbers head coach Caleb Porter failing to make it out of the first group stage of CONCACAF’s qualifying tournament in 2011. The U.S. had appeared in four of the five previous Olympics, finishing fourth at the 2000 games in Sydney.

Though Major League Soccer has the greatest representation in the roster, teams from eight countries beyond MLS have players in Herzog’s selection: England (four), Germany (three), Mexico (two), Cyrpus, Netherlands, Norway, Scotland, and Switzerland (one, each).

CONCACAF Olympic qualifying begins on Oct. 1, with the U.S. to face Canada, Cuba and Panama in Group A at Sporting Park in Kansas City, Kansas.

ROSTER

GOALKEEPERS (3): Cody Cropper (MK Dons; Maple Grove, Minn.), Ethan Horvath (Molde; Highlands Ranch, Colo.), Zack Steffen (Freiburg; Downington, Pa.).

DEFENDERS (8): Cameron Carter-Vickers (Tottenham Hotspur; Westcliff on Sea, England), Matt Miazga (New York Red Bulls; Clifton, N.J.), Eric Miller (Montreal Impact; Woodbury, Minn.), Boyd Okwuonu (Real Salt Lake; Edmund, Okla.), Shane O’Neill (Apollon Limassol; Boulder, Colo.), William Packwood (Unattached; Concord, Mass.), Dillon Serna (Colorado Rapids; Brighton, Colo.), Oscar Sorto (LA Galaxy; Los Angeles, Calif). 

MIDFIELDERS (8): Gboly Ariyibi (Chesterfield; Arlington County, Va.), Luis Gil (Real Salt Lake; Garden Grove, Calif.), Emerson Hyndman (Fulham; Dallas, Tex.), Benji Joya (Club Necaxa; San Jose, Calif.), Marc Pelosi (San Jose Earthquakes; Sunnyvale, Calif.), Matt Polster (Chicago Fire; Milwaukee, Wisc.), Wil Trapp (Columbus Crew; Gahanna, Ohio), Gedion Zelalem (Rangers; Bethesda, Md.). 

FORWARDS (5): Alonso Hernandez (C.D. Juarez; El Paso, Texas), Jerome Kiesewetter (VfB Stuttgart; Berlin, Germany), Mario Rodriguez (Borussia Mönchengladbach; North Hollywood, Calif.), Rubio Rubin (Utrecht; Beaverton, Ore.), Maki Tall (Scion; Washington, D.C.).