Are Professional Sports Players Protected By The First Amendment When They Engage In Political Protest On The Field? - First Amendment Watch
NFL's Week 4 sees dozens of players kneel, sit, raise fists during national anthem
NFL protests: 2 years of NFL protests, explained - Vox
Trump Turns to the 'Southern Strategy' Once Again to Attack NFL Players Taking a Knee During the National Anthem
More than 200 NFL players sit or kneel during anthem
NFL protests 2017: What are players protesting when kneeling for the national anthem?
From 1960s Football Boycotts to NFL National Anthem Protests
Texans Link Arms In Solidarity As Over 200 NFL Players Don't Stand For Anthem – Houston Public Media
NFL, NFLPA freeze anthem rules amid backlash to Miami policy
NFL players union files grievance over anthem policy