Entire team takes a knee: Pittsburgh Steelers to stay in locker room during anthem after Trump's attacks
Steeler's coach Mike Tomlin -- screenshot

Pittsburgh Steelers coach Mike Tomlin said on Sunday that the team was planning the largest protest yet against President Donald Trump and his attacks on players who refused to stand during the nation's anthem.

247Sports reported that it "would be by far the biggest national anthem protest yet."

Jamie Erdahl of CBS Sports confirmed that the Steelers would indeed be staying in the locker room during the playing of the national anthem on Sunday.

Trump has called on NFL owners to fire players who take a knee during the anthem.