The article isn't dated so it may be old news, but I'm glad to see them take a patriotic stand:
The U.S. Soccer Federation has recently decided to take a stand against any players who don’t stand during the national anthem before games. Other forms of protest were also included.
It implemented a policy requiring all national team members to “stand respectfully” during the national anthem.
KSDK reported that the policy came to light Saturday before the U.S. women’s national team competed against England in a SheBelieves Cup match. Policy 604-1 stated: “All persons representing a Federation national team shall stand respectfully during the playing of national anthems at any event in which the Federation is represented.