Damar Hamlin Remains in Critical Condition as NFL Says Game Will Not Resume This Week - WSJ
Ohio State-Michigan Football Game Canceled By Covid-19 Outbreak, Interrupting Century-Old Annual Rivalry – Deadline
Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020
NFL informs clubs that COVID-19 outbreaks among unvaccinated players could lead to forfeited games
Notre Dame Postpones Game, the Latest Virus Disruption for ACC Football - WSJ
AP Sources: NFL discussed cancellations due to COVID-19
AP Sources: NFL discussed cancellations due to COVID-19
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Three NFL games moved due to COVID-19 outbreaks - CBS News
NFL discussed cancellations due to COVID-19 outbreaks on teams: reports