Taking a stand by bending a knee: How Kaepernick began a movement

An American football player’s public protest against police brutality and racial discrimination may have cost him his career.

Colin Kaepernick was the quarterback for the San Francisco 49ers.

Born to a white mother and black father, and raised by white adoptive parents, Kaepernick ignited a growing trend among US pro athletes to “take a knee” during the national anthem at the start of games.

Al Jazeera’s Heidi Zhou-Castro reports from New York.