Timeline of the NFL COVID-19 outbreak -- How positive tests led to postponed games - ESPN
Steelers-Ravens game postponed to Sunday afternoon
Billings Central-Glendive football game canceled due to COVID-19 case
NFL COVID-19 protocol changes, Week 15 postponed games, new testing and return-to-play rules - Can the NFL navigate the omicron variant? - ESPN
NFL Postpones 3 Games Due to COVID-19 Surge
Brock Purdy throws 4 TD passes to lead the 49ers past the Cowboys 42-10
Three NFL games moved due to COVID-19 outbreaks
49ers Facility Shuts Down After Player Tests Positive for COVID-19 — 1 Day Before Playing the Packers
COVID Surge Is Putting Pro Sports to the Test
COVID rages across the U.S. again just as Americans gather for the holidays : NPR
COVID-19 surge wreaking havoc on sports world - The Japan Times
With no bubble in place, football season, college and NFL, in jeopardy with rising COVID rates
We Need to Cancel or Postpone the Rose Bowl and the Super Bowl
NFL legend Steve Young: The league is tweaking COVID-19 policies so that 'asymptomatic players can play'