The Football Association published 23 names
The Football Association said the group contained 24 players, but the published list has 23 names: three goalkeepers, seven defenders, seven midfielders and six forwards.

Two friendly matches let England test combinations
The short gap between the games allows the coaches to use different player combinations and then respond to what happened in the first match. The purpose is development rather than protecting one result.
England can examine how the defenders pass to midfielders when the United States press high. The second match will also show whether the group can apply corrections after only two days of preparation.
The published group contains three goalkeepers, seven defenders, seven midfielders and six forwards. That balance gives the staff several options for changing the line-up between the fixtures.
The players must adapt to an away camp
The fixtures take place at the KC Current training complex in Riverside, Missouri. England must manage travel, a different routine and an opponent that is familiar with the venue.
The first match begins on Tuesday evening in the United Kingdom and the second on Friday afternoon. Recovery work and clear instructions will therefore be important during the short interval.
The two matches will also test how quickly the players recover and apply the coaching staff’s changes between fixtures.