NFL requiring players and staff to receive Covid booster by December 27 as first Omicron case identified, NFL News

NFL implements CDC recommendation that eligible players and staff receive Covid booster shot in the next fortnight; 37 players - including nine Washington players - unavailable because of Covid as NFL records highest single-day total of positive cases since the beginning of the pandemic

Ravens QB Lamar Jackson, 49ers RB Christian McCaffrey highlight December/January Players of the Month

Washington Football Team's COVID-19 outbreak worsens

Coronavirus Timeline: Tracking major moments of COVID-19 pandemic

NFL plans changes to COVID-19 protocols - Indianapolis News, Indiana Weather, Indiana Traffic, WISH-TV

New COVID-19 protocols to feature targeted testing of fully

NFL could become trend-setter for COVID-19 testing policies

Gov. Gavin Newsom calls an end to the nearly 3-year-old COVID-19 state of emergency

Biden unveils new plan to combat Omicron, Coronavirus pandemic News

Cleveland Browns' Covid Outbreak Continues N.F.L. Surge - The New York Times

A resurgent Covid-19 is breaking through the strictest protocols and upending the return of live professional sports

2 more Flames players added to COVID protocol as organizational

NHL announces enhanced COVID-19 measures amid new Omicron variant

Facing Covid Spike, N.F.L. Mandates Boosters, but Stops Short on Testing - The New York Times