Taking a knee: Why are NFL players protesting and when did they start to kneel?, The Independent
Teammate joins Colin Kaepernick in kneeling during national anthem - CBS News
Colin Kaepernick - Wikipedia
Colin Kaepernick timeline: Looking back at year of national anthem controversy
Jay-Z's Partnership With the NFL Is Wrong to Erase Colin Kaepernick From the Narrative
The Kaepernick fallout: Nation, police, politicians, athletes react strongly – The Mercury News
The Psychology of Taking a Knee
The NFL Responds to Donald Trump - The Ringer
What Colin Kaepernick Started - The New York Times
Colin Kaepernick joined by Eric Reid in kneeling for national anthem protest, Colin Kaepernick