Things we'd change in sports: It's time to stop playing national anthem at sporting events
Athletes and activism: Taking a stand didn't start with Colin Kaepernick
Is Colin Kaepernick not in the NFL because of kneeling or because he's not good anymore? Both? - Quora
Colin Kaepernick Kneeled To Stop Killings, Like George Floyd
A timeline of Colin Kaepernick's national anthem protest and the athletes who joined him
PDF) Flag on the Play: Colin Kaepernick and the Protest Paradigm
Why this vet believes Americans need to continue to turn away from the NFL – Lawfire
Colin Kaepernick triggered backlash but he also sparked awakening for many NFL players
President's criticisms spark more protests at NFL games
Kawakami: This is the moment Colin Kaepernick helped create - The Athletic