The 49ers may have a couple of banged up cornerbacks.
Chris Davis, the team's top nickel back, did not practice on Wednesday and was seen wearing a sleeve on his right knee.
And during the portion of practice open to the media, Keith Reaser was working on a side field.
Glenn Dorsey, who is recovering from a torn right ACL sustained last November, went to the weight room when practice began.
Chip Kelly said that barring a setback, he expects Dorsey to be in uniform on Monday night against the Rams.