NFL: Players will stand for National Anthem or face penalty, News
National anthem protests: NFL owners consider new rule - Sports Illustrated
How playing the national anthem less might make it mean more
New NFL anthem policy requires players to “stand and show respect” - Vox
Here's what the NFL's halted anthem policy means for players and teams
NFL owners say players must stand for the National Anthem
NFL shows who and what it values with new anthem policy
Black fans call NFL's plan to play 'Lift Every Voice and Sing' a 'joke,' 'placating,' 'pandering'
Good Question: What are the NFL rules about the national anthem?