The Dallas Cowboys had never had a player protest during the playing of the national anthem -- until Sunday.
Dontari Poe, who signed as a free agent this offseason, vowed he would kneel and did. He was the only player to do so.
Assistant defensive line coach Leon Lett, along with defensive linemen Antwaun Woods and Aldon Smith, placed a hand on Poe's shoulder.
Jerry Jones has made clear his preference for players to stand during the anthem, with their "toes on the line," and a few years ago threatened to cut any player who protested.