U.S. Olympic team coach Clive Charles has announced the roster for the U.S. U-23 national team, which will face the defending A-League champion Milwaukee Rampage on July 26 before departing for a 16-day training camp in Manchester, England. 15 players have been named for the match versus the Rampage, with at least four more set to join for the tour of England. Following the Milwaukee match, the team will depart for Manchester on July 27 and will spend 16 days training at the grounds of legendary English powerhouse Manchester United. During the tour, the U.S. squad will face the reserve teams of three top English clubs: Bolton Wanderers (Aug. 1), Liverpool (Aug. 5) and Manchester United (Aug. 8), as well as the first team from lower division Hyde United (Aug. 12). Joey DiGiamarino (Colorado Rapids), Carlos Parra (Miami Fusion) and Josh Wolff (Chicago Fire) will remain with their respective clubs for the weekend and will join the U.S. team in Manchester for the training camp and exhibition matches. UCLA midfielder Sasha Victorine will also join the team in England. U.S. midfielder John O’Brien, who was an alternate with the U.S. World Cup Team, is tentatively scheduled to join the U.S. in England, pending approval from his Dutch club, FC Utrecht. O’Brien signed a contract with Ajax Amsterdam earlier in the year but has been loaned to Utrecht. Here is the U.S. roster: Goalkeepers — Adin Brown (William & Mary), Andy Kirk (San Jose Clash). Defenders — Matt Chulis (Virginia), *Joey DiGiamarino (Colorado Rapids), Brian Dunseth (New England Revolution), Ben Hooper (Fortuna Sittard, Netherlands), Chad McCarty (Tampa Bay Mutiny), *Carlos Parra (Miami Fusion). Midfielders — Scott Bower (Clemson), Ramiro Corrales (MetroStars), *John O’Brien (Utrecht, Netherlands), Antonio Otero (American Univ.), Steve Shak (UCLA), Peter Vagenas (UCLA), *Sasha Victorine (UCLA), Evan Whitfield (Duke). Forwards — Chris Brown (Portland), Brian West (Columbus Crew), Brian Winters (Portland), *Josh Wolff (Chicago Fire). *-not available for Milwaukee match July 26.