N.F.L. Revises Covid Protocols After Over 90 Players Get Virus - The New York Times
Changing the COVID rules will help the NFL on the field, but will it be safe for players? - The Boston Globe
College football: Are linemen at greater COVID-19 risk because of size
NFL COVID rules, explained: Everything to know about coronavirus and football in 2020
Key Raiders Players Face Covid-19 Isolation Before Their Big Game - WSJ
Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020
MMQB: How Week 4 tested the NFL's COVID-19 protocols - Sports Illustrated
Coronavirus is making exploitation of NCAA athletes obvious - Los Angeles Times
MLS to NFL: Dallas Cowboys kicker Brandon Aubrey completes 6-year journey
NFL updates protocols in response to COVID-19 cases
Study: With masking and distancing in place, NFL stadium openings in 2020 had no impact on local Covid-19 infections, MIT News
How Covid-19 Changed the Sports Industry