Will Covid-19 postpone the NFL season? There are 16bn reasons why it won't, NFL
NFL COVID-19 tracker: Updated team-by-team list of players in protocol for Week 17
Travis Kelce, two other Chiefs being placed on Reserve/COVID-19 list - Arrowhead Pride
N.F.L. to Bar Unvaccinated Coaches From Working With Players - The New York Times
Cowboys' Andy Dalton placed on reserve COVID-19 list
NFL Health and Safety Fact Sheet
COVID-19 updates: Record 96 NFL players test positive
Record-high 47 NFL players added to COVID-19 list in a single day