Resolves YES for all players included in the 26-man (or whatever the final number) squad reported to FIFA at the final deadline (to be established at a later date).
Subsequent changes to the squad don't count, i. e. players who are out for injuries or other reasons after the deadline still resolve as YES and their replacements resolve as NO.
Thanks to @ADings for making the German Euros Roster market, which encouraged me to pull the trigger on this and for nailing down a reasonable resolution criteria, which I have largely borrowed from for this market.
Please add your best guesses and anyone you think might have a slim chance. A lot can happen leading up to 2026!
Update 2026-05-26 (PST) (AI summary of creator comment): - Resolves based on FIFA's official squad list published June 2 (submission deadline: June 1)
Pre-deadline injury swaps: swapped-in player resolves YES, dropped player resolves NO
Post-deadline replacements (in-tournament injuries, etc.): original 26 stay YES, replacements resolve NO
Creator plans to resolve on or around June 2 once FIFA publishes
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Quick elaboration on timing!
Expanding on the original resolution criteria:
FIFA's final squad submission deadline is June 1, with FIFA publishing the official lists June 2 — that's the list this market resolves against, per the original criteria. So in the unlikely event of a friendly-camp injury between now and June 1 that forces a swap, the swapped-in player resolves YES and the dropped player resolves NO.
Anything AFTER the June 1 deadline (in-tournament injury replacements, etc.) doesn't count — original 26 stays YES, replacements NO. Planning to resolve on/around June 2 once FIFA publishes.
### USMNT Player Positions ###
Zack Steffen: GK
Ethan Horvath: GK
Sean Johnson: GK
Brandon Vázquez: F
Patrick Schulte: GK
Quinn Sullivan: M
Alex Freeman: D