President Trump kept his war of words with the NFL rolling Saturday evening by condemning NFL commissioner Roger Goodell for not taking a stand against his league's players who kneel during the national anthem.

"Roger Goodell of NFL just put out a statement trying to justify the total disrespect certain players show to our country.Tell them to stand!" Trump tweeted.

Roger Goodell of NFL just put out a statement trying to justify the total disrespect certain players show to our country.Tell them to stand! — Donald J. Trump (@realDonaldTrump) September 23, 2017

The feud started Friday evening at a rally for Sen. Luther Strange when Trump called out NFL players: "Wouldn't you love to see one of these NFL owners, when somebody disrespects our flag, to say, ‘Get that son of a bitch off the field right now. He is fired. He's fired,'" Trump said.

Goodell released a statement Saturday morning calling the president's comments "divisive," and saying he has a lack of respect for the NFL.