NFL COVID-19 protocol changes, Week 15 postponed games, new testing and return-to-play rules - Can the NFL navigate the omicron variant? - ESPN
How COVID-19 Reveals the Cruelty of the NFL - The Atlantic
10 in quarantine after fan at Chiefs game tests positive for Covid-19
Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020
Changing the COVID rules will help the NFL on the field, but will it be safe for players? - The Boston Globe
How the NFL is dealing with COVID
2020 NFL schedule: League anticipates starting season on time
NFL stops all Covid protocols, dropping all masks and testing requirements
Is playing NFL football 'how we want to allocate resources?'
NFL taps big brand sponsors for safe season return during coronavirus pandemic
How the NFL is dealing with COVID
NCAA and college football's coronavirus crisis, explained - Vox