Safety Antuan Edwards is out at least three to four weeks with a broken forearm. Likewise, he could require surgery which would mean a longer absence.
Among those not completely ruled out for Sunday's game, receiver Javon Walker is the biggest question mark. Walker suffered a deep thigh bruise Sunday. A decision on his status is expected later in the week.
Other touch-and-go injuries include: FB William Henderson and right guard Marco Rivera both with strained medial collateral ligaments and tight end David Martin who suffered a concussion and mouth laceration which required stitches.
"That's part of the game," Sherman said. "Some of our backups will step in and do a good job for us, I'm completely confident of that."
Rivera had an MRI Monday, but the result was not yet available.
"There might be a little tear in the MCL," Rivera said. "As of right now, I feel pretty confident I could go."
In case Rivera is not available Sunday, Bill Ferrario would make his first NFL start. Ferrario was cited by coach Mike Sherman for dependable play after Rivera's injury Sunday.
Ahman Green, held out of the Detroit game with a quad tendon injury, is expected to return to practice Wednesday.