Mauricio Pochettino will name the United States squad on 26 May, a date ESPN confirmed this week alongside a list of five unresolved selection problems 1. Gio Reyna has played five minutes of club football since January, which makes any inclusion a coaching gamble rather than a form decision. Tyler Adams's fitness is uncertain. Centre-back is described around the coaching staff as 'almost a wide-open competition' after a first-choice defender went down in March and Patrick Agyemang was ruled out with an Achilles injury. The midfield pairing is unresolved, and Pochettino has not yet committed publicly to a four-back or five-back system.
The sequencing makes the gaps harder to close. Friendlies against Senegal on 31 May in Charlotte and Germany on 6 June in Chicago sit on either side of the squad announcement, which means there is no competitive window in which a borderline player can audition into the 26. The selection has to be made first; the friendlies confirm or contradict it after the fact.
The most recent competitive evidence Pochettino is working from is bleak. The USMNT lost 2-5 to Belgium and 0-2 to Portugal at Mercedes-Benz Stadium across the March window, conceding seven goals at the venue that will host the United States' opening match. By 26 May those defeats will be six weeks old, and they will still be the freshest meaningful data Pochettino's staff has on a back four they are about to commit to for a home tournament.
The choice of system, four versus five at the back, is a fork that conditions every other decision. Five at the back creates a place for the wing-back profile and demotes one of the open midfield slots; four releases an attacking player but requires the centre-back partnership to be settled. With both items unresolved 41 days before the announcement, the coaching staff is still optimising for optionality at the moment optionality has to end.
