College football protests: What've coaches said? Why are they less common?
The first high school player to protest National Anthem is receiving vile racist threats – New York Daily News
Michael Holding's 'Why We Kneel' Is a Strike at the Heart of Racism in Sports – And Society
America's struggle with racism, as told by immigrants - BBC News
Why The 'Black National Anthem'—Played At NFL Games And U.S. Open—Is Angering The Right Wing
Athletes and activism: The long, defiant history of sports protests
N.F.L. Will Allow Six Social Justice Messages on Players' Helmets - The New York Times
NFL Sunday: Here's how teams highlighted racial inequality in the US
Several N.F.L. Players Protest Racism and Hate as Season Begins - The New York Times
To honor July 4, the NBA should skip the national anthem. Its players already are.