HUNTSVILLE, Ala. (AP) — President Donald Trump has a suggestion for National Football League owners whose players decide to take a knee during the national anthem: fire them.

And the president has a similar suggestion for fans of the sport: walk out of the stadium in protest.

Quarterback Colin Kaepernick started the trend last year when he played for the San Francisco 49ers. He hasn't been signed by an NFL team this season.

Trump's hard-nosed reaction to protests by several athletes over treatment of blacks by police came Friday night during a freewheeling rally in Alabama. He says such players are disrespecting the flag and deserve to lose their jobs.

Trump also bemoaned that football has become less violent. That view comes amid growing concerns over repeated head blows and a brain disease.

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