Colin Kaepernick has filed a grievance against the National Football League in which he claims team owners colluded to keep him from being signed.
The grievance was filed on Sunday under the league’s Collective Bargaining Agreement, according to a statement from Mark Geragos, Kaepernick’s attorney. Geragos is also a CNN contributor.
The statement said the grievance was filed “only after pursuing every possible avenue with all NFL teams and their executives.”
Kaepernick, who is still a free agent, first took a knee during the singing of the National Anthem before a 2016 preseason game. He kneeled to protest the treatment of black Americans, particularly by police.