LB Aaron Lynch and WR Torrey Smith are listed as questionable. Lynch remains in the concussion protocol this week. While he has practiced, he has done so in a blue no-contact jersey. Smith practiced for the first time on Friday after dealing with back issues.
A massive 18 players appeared as probable on the 49ers' injury report.
The 49ers and Bengals kick off at 1:25 PM on Sunday at Levi's Stadium.
San Francisco 49ers
Out: LG Alex Boone (knee), LB Michael Wilhoite (ankle)
Questionable: OLB Aaron Lynch (concussion), WR Torrey Smith (back, toe), CB Tramaine Brock (hamstring)
Probable: DT Arik Armstead (shoulder), WR Anquan Boldin (hamstring), LB Navorro Bowman (shoulder, finger), LB Ahmad Brooks (shoulder), CB Marcus Cromartie (hip), DT Quinton Dial (shoulder), RB Kendall Gaskins (concussion), LB Eli Harold (shoulder, hamstring), C Marcus Martin (ankle), TE Vance McDonald (concussion), T Erik Pears (knee), DT Mike Purcell (shoulder), S Eric Reid (shoulder), WR Jerome Simpson (finger), T Joe Staley (knee), S Jaquiski Tartt (ankle), G Andrew Tiller (knee), S Jimmie Ward (elbow)
The 49ers added CB Tramaine Brock to their injury list; he's questionable with a hamstring strain.
— Matt Barrows (@mattbarrows) December 18, 2015
Cincinnati Bengals
Probable: C Russell Bodine (finger), LB Vontaze Burfict (knee), CB Leon Hall (back), DE Michael Johnson (back), CB Adam Jones (foot), CB Dre Kirkpatrick (knee), T Andrew Whitworth (knee)