NFL Health and Safety Fact Sheet
Covid-19 outbreaks wreak havoc on NFL schedule with three games moved
Analysis: How the NFL got through the pandemic and to 2021
Was fan attendance at NFL games during the 2020-21 season associated with subsequent spikes in COVID-19 cases?
Timeline of the NFL COVID-19 outbreak -- How positive tests led to postponed games - ESPN
NFL warns teams could forfeit games if Covid outbreaks occur among unvaccinated players
Major sports and entertainment events canceled, rescheduled due to rising COVID-19 cases - ABC News
Florida Gators pause all football activities following Covid-19 outbreak
COVID-19 pandemic in the United States - Wikipedia
Media Bowl 2020: Delco rivalry football game continues amid COVID surge - WHYY
NFL moves three games due to COVID-19 outbreaks, including Eagles-WFT
NFL informs clubs that COVID-19 outbreaks among unvaccinated players could lead to forfeited games