Chargers tackle Russell Okung stood with his fist raised during the national anthem Saturday ahead of the Chargers-Cardinals game at University of Phoenix Stadium.
There were no other overt protests, and it wasn’t immediately clear whether any players remained in the locker room.
Okung, one of the leaders pushing for social change among NFL players, raised his fist while remaining standing during the national anthem last season to protest social injustices and police brutality.
Okung wrote an open letter last fall calling for NFL players to be more organized in their protests and lamenting the warping of their protests' original intention.