The 49ers and Packers will square off at Lambeau Field on Sunday, and each team could be without key defensive cogs.
For San Francisco, cornerbacks Carlos Rogers and Eric Wright are both listed as questionable with hamstring injuries.
For Green Bay, Clay Matthews has been ruled out after thumb surgery.
The status reports for both team going into Sunday's showdown:
San Francisco 49ers
CB Carlos Rogers (hamstring), LB Dan Skuta (foot), CB Eric Wright (hamstring)
WR Jon Baldwin (illness), LB Navorro Bowman (wrist), CB Tarell Brown (ribs), WR Michael Crabtree (quadricep), C Jonathan Goodwin (not injury related), RB Frank Gore (knee), G Mike Iupati (knee), DT Justin Smith (shoulder)
Green Bay Packers
LB Clay Matthews (thumb)
LB Brad Jones (ankle), RB Eddie Lacy (ankle), DE Mike Neal (abdomen), LB Nick Perry (foot), DT Ryan Pickett (knee)