From
https://profootballtalk.nbcsports.com/category/rumor-mill/The 49ers activated rookie cornerback Ambry Thomas from the COVID-19 reserve list Friday, two days after he went on the list. Thomas is among five 49ers defensive backs placed on the COVID-19 reserve list this week. Safety Jimmie Ward and cornerbacks K'Waun Williams, Dontae Johnson and Deommodore Lenoir remain on the list. 49ers General Manager John Lynch expressed optimism Friday that the team would get at least some of those players back in time for Sunday’s game against the Rams.
The 49ers expect to have cornerback Emmanuel Moseley back from injured reserve for Sunday. He has rehabbed from a high-ankle sprain.
Thomas started the past four games and has 23 tackles in 11 overall appearances this season. He was a third-round selection of the 49ers.