How the NFL navigated COVID-19 this season - 959,860 tests, $100 million and zero cancellations - ESPN
Report: Packers have no new positive tests for COVID-19, Williams & Martin to miss 49ers game
San Francisco 49ers' Fred Warner placed on NFL's COVID-19 reserve list
Coronavirus: San Francisco 49ers may require temporary home because of new restrictions, NFL News
Browns stun 49ers 19-17, hand San Francisco its first loss and QB Brock Purdy his first as starter – KGET 17
What happens when NFL players test positive for COVID-19?
N.F.L. Adds New Covid-19 Protocols to Keep Season on Track - The New York Times
NFL COVID rules, explained: Everything to know about coronavirus and football in 2020
Jets WR Jamison Crowder tests positive for COVID
49ers got a humbling reminder from the Browns that the NFL is hard
The Browns Defense is the First Real Test for the 49ers Offense
Chiefs with no new COVID-19 positives; Gordon, Gay return
Unbeaten 49ers hit the road to face Browns team expected to be without starting QB Deshaun Watson, National Sports
NFL Playoffs: COVID Eligibility Player Tracker