3 goalkeepers and 3 outfield players have been let go.
New signings Arnau Puigmal and Largie Ramazani are named.
Man United finished 3rd in Group A of the Gordon Jago Super Group at the Dallas Cup.
Jetlag and the Dallas heat saw United lack fluency as they were thrashed by Chivas.
Manchester United will take a squad of 17 to the United States' oldest youth football tournament, the Dallas Cup.