Athlete activism is on the rise, but so is the backlash - Global Sport Matters
The NFL's 'take a knee' movement and its impact on workplace protest, CU Boulder Today
Fan Reaction to NFL National Anthem Protests About Racism – Rolling Stone
Racial injustice themes fill empty NFL stadiums
Colin Kaepernick: A timeline of his protest and its echoes to George Floyd
How Fans Are Reacting to the NFL Anthem Protests - Sports Illustrated
Colin Kaepernick Rally Draws Huge Crowd Outside NFL Headquarters
The Malcolm Jenkins controversy and why the NFL still doesn't have a policy on kneeling
More NFL players take a knee during national anthem
Colin Kaepernick, the national anthem and America: How military service influenced my views on patriotism and protest
The Kaepernick Effect: a story of the other athletes who kneeled in protest, Colin Kaepernick
Kaepernick's anthem protest has everyone talking
As NFL Sides With Players Amid Renewed Trump Criticism, Poll Shows Republicans Softening on Athletes' Political Speech
Colin Kaepernick timeline: Looking back at year of national anthem controversy
Colin Kaepernick: From NFL Player to Social Justice Advocate