NFL and NFL Players Association drop all COVID protocols for 2022 season : Coronavirus Updates : NPR
How training camp amid COVID-19 makes roster building harder - Sports Illustrated
How It's Made: Anatomy of the NFL Schedule
NFL COVID-19 protocol changes, Week 15 postponed games, new testing and return-to-play rules - Can the NFL navigate the omicron variant? - ESPN
NFL will invite COVID-19 frontline workers to Super Bowl if vaccinated
Coronavirus live updates: NFL prepared to alter schedule - Los Angeles Times
Upcoming schedule changes due to COVID-19
Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020
BIG TEN CONFERENCE ANNOUNCES EXCITING FUTURE FOOTBALL SCHEDULE FORMATS FOR 2024 AND 2025 - Big Ten Conference
What to Know About Covid-19 and the 2021 Super Bowl - The New York Times
NFL moves 3 games due to latest COVID-19 outbreaks