Three NFL games postponed due to COVID-19 outbreaks - Sports Illustrated
NFL legend Steve Young: The league is tweaking COVID-19 policies so that 'asymptomatic players can play'
COVID-19 pandemic in the United States - Wikipedia
NFL COVID-19 protocol changes, Week 15 postponed games, new testing and return-to-play rules - Can the NFL navigate the omicron variant? - ESPN
Business of Football: COVID-19 surge; Brett Favre with John Madden; Antonio Brown's antics - Sports Illustrated
NFL 2021: Three NFL games postponed amid surge in Covid-19 cases, NFL players association, Roger Goodell
NHL notebook: How safe are fans still attending games amid league's COVID-19 outbreaks?
Favored Saints brace for Bears team with 'nothing to lose' - The San Diego Union-Tribune
NFL postpones 3 games due to COVID-19 outbreaks - MarketWatch
Three NFL games moved due to COVID-19 outbreaks - CBS News