NFL players used the national anthem to show their defiance to President Donald Trump's criticism, with an unprecedented number of players kneeling in protest and one team staying in the locker room.
Most teams in the early afternoon games locked arms in solidarity. At least three team owners joined their players.
More than 30 players knelt, the form of protest started last season by former San Francisco 49ers quarterback Colin Kaepernick. Kaepernick is now a free agent, and supporters believe teams have avoided signing him because of his protest.
The Pittsburgh Steelers remained in the locker room as the national anthem played before their game with the Chicago Bears.