U.S. Soccer has adopted a policy that all players must “stand respectfully” during the Star-Spangled Banner before games.

Beginning last year, many athletes across all sports sat or kneeled during the national anthem in protest of racial oppression in America. Most notably in U.S. Soccer, star Megan Rapinoe took a knee before several games last fall.

Now, U.S. Soccer rules say “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.”

Watch the video below for more detail.