Colin Kaepernick takes aim at NFL and makes accusation over last six years - Mirror Online
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U.S. national anthem kneeling protests - Wikipedia
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A timeline of Colin Kaepernick kneeling in protest against police brutality - The Washington Post
Colin Kaepernick's rise from quarterback to social activist: a timeline — Andscape
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Colin Kaepernick doesn't have a clue about what 'sacrificing everything' really means
Colin Kaepernick's road from Super Bowl quarterback to anthem protests and becoming the face of Nike
Taking a knee: Why are NFL players protesting and when did they start to kneel?, The Independent