The N.F.L. and Covid-19: How the League Prepared for the Super Bowl - The New York Times
Super Bowl 55 has COVID-19 safety guidelines, virtual fans
The NFL's Covid-19 playbook ahead of the 2021 Super Bowl, explained - Vox
Pro-vaccination ad leaves NFL's Kelce in misinformation crosshairs
When Will Football Stadiums Look Normal Again? - Scientific American
Lambeau Field ready for Packers-Lions home opener Monday night
NFL has contingency plans if COVID-19 forces it to move Super Bowl from Los Angeles - The Boston Globe
Super Bowl cardboard cutouts make stadium look filled to capacity
AP Source: NFL plans changes to COVID-19 protocols