And here are the players that didn't make the 23 man roster, but who are on the 40 man roster and can still be called in after the group stage:
GOALKEEPERS: Joe Bendik (Orlando City SC), Jesse Gonzalez (FC Dallas), Tim Howard (Colorado Rapids)
DEFENDERS: Steve Birnbaum (D.C. United), Greg Garza (Atlanta United FC), Matt Polster (Chicago Fire), Jonathan Spector (Orlando City SC)
MIDFIELDERS: Michael Bradley (Toronto FC/CAN), Tommy McNamara (New York City FC), Darlington Nagbe (Portland Timbers), Chris Pontius (Philadelphia Union), Christian Pulisic (Borussia Dortmund/GER), Wil Trapp (Columbus Crew SC)
FORWARDS: Jozy Altidore (Toronto FC/CAN), Clint Dempsey (Seattle Sounders FC), C.J. Sapong (Philadelphia Union), Chris Wondolowski (San Jose Earthquakes)