The 49ers hold down COVID-19 - Whoops, except for Fred Warner
49ers linebacker Fred Warner put on reserve/COVID-19 list
Chargers vs. 49ers: News, analysis and updates ahead of preseason Game 2 - Los Angeles Times
49ers Place Three on Reserve/COVID-19 List
Niners linebacker Fred Warner's lucrative contract has a unique structure, with two deals in one
49ers place linebacker Fred Warner on Reserve/COVID-19 list
Coronavirus: San Francisco 49ers put Brandon Aiyuk, Trent Williams on Covid-19 list after Kendrick Bourne positive test, NFL News
49ers putting talented roster in QB Trey Lance's hands
49ers place Fred Warner on Covid-19 IR list - DraftKings Network
Kyle Shanahan, San Francisco 49ers 'very grateful' to have linebacker Fred Warner back after stint on COVID-19 list - ESPN
It's just a good reminder that no one's out of the woods.' 49ers Fred Warner Goes on Reserve/COVID-19 List - Fangirl Sports Network