The memo 4 players sent NFL commissioner Roger Goodell
Athletes and activism: The long, defiant history of sports protests
How NFL players are using their platform for social justice protests
NFL Players Move Their Protests Off The Field, Grilling DA Candidates : NPR
NFL mandates that players on the field stand for national anthem - ABC News
NFL players protest during national anthem, drawing criticism from Trump
The NBA's Social Justice Dilemma: Do Sports Distract and Detract From Activism?
3 years after Kaepernick took a knee, the NFL is back to business as usual - Vox
How NFL players are using their platform for social justice protests
In light of George Floyd's death, ex-NFL exec admits what we knew all along: Protests ended Colin Kaepernick's career
Football is here — and the NFL still doesn't know what to do about protests