Washington PostColin Kaepernick files grievance accusing NFL teams of colluding against himWashington PostQuarterback Colin Kaepernick, who remains unemployed after a 2016 season in which he began the movement of players protesting during the national anthem, has filed a grievance accusing NFL teams of improperly colluding to keep him out of the league, ...Proving collusion by NFL owners will be tough for Colin KaepernickESPN (blog)Colin Kaepernick files collusion grievance against NFL ownersUSA TODAYColin Kaepernick files grievance alleging collusion by NFL owners over his national anthem protestsNew York Daily NewsYahoo Sports -ABC News -Bleacher Report -SFGateall 110 news articles »