NBC Sunday Night Football - Wikipedia
NFL used tracking tags to keep COVID from derailing season - Los Angeles Times
Coronavirus Updates : NPR
All NFL teams to enter intensive COVID-19 protocol Saturday
The Great Influenza: The Story of the Deadliest Pandemic in History: Barry, John M. M.: 9780143036494: : Books
Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020
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