Owners and player representatives called a Tuesday meeting "productive" but didn't announce any new policies.
The grievance claims all 32 NFL teams "colluded to deprive Mr. Kaepernick of employment rights."
A White House official said NFL players should "do free speech on their own time." But historically, sports and politics have gone hand in hand.
The NFL and many of its players responded to President Trump's criticism of national anthem protests and league safety initiatives.
Philadelphia Eagle Chris Long put an arm around teammate Malcolm Jenkins during his anthem protest. He's likely the first white player to do so.
Dan Orlovsky was signed to the Los Angeles Rams ahead of Colin Kaepernick, even though his numbers are worse.
The quarterback is still available in the NFL free agent market.
Starting next season, the San Francisco 49ers quarterback will stand for the playing of the national anthem, according to ESPN.
Admiral Harry B. Harris JR. pointed out the veterans of Pearl Harbor "never failed to stand for the national anthem being played."
Major sports figures on both sides of the political spectrum have sounded off about the result of the presidential election.
People are throwing out plenty of reasons, from political coverage to anthem protests.
Broncos star Von Miller offered support Thursday of San Francisco's Colin Kaepernick and Broncos teammate Brandon Marshall for…