The New York Giants’ Olivier Vernon took a knee for the U.S. national anthem on Thursday night in a game against the Washington Redskins.
Vernon, a defensive end, has consistently not stood for the anthem before games.
He was shown on NBC cameras on Thanksgiving night doing a silent protest.
Some fans pilloried Vernon, 27, for the move on social media
Earlier this season, he attempted to explain his reasoning for the protest.
President Donald Trump has been the most vocal opponent of the protests, saying that they have turned off fans.
“The NFL is now thinking about a new idea — keeping teams in the Locker Room during the National Anthem next season,” Trump tweeted Wednesday. “That’s almost as bad as kneeling! When will the highly paid Commissioner finally get tough and smart? This issue is killing your league!”
Earlier in the week, Trump slammed Oakland Raiders player Marshawn Lynch for sitting for the national anthem while standing for the Mexican national anthem during a game in Mexico City against the New England Patriots. A few other players around the league have persisted in protesting, but free agent quarterback Colin Kaepernick is credited with starting the movement, saying it’s to raise awareness about police brutality.