SANTA CLARA – Linebacker Reuben Foster and the 49ers’ first- and second-strong strong safeties will not be available Thursday night when the club faces the Raiders at Levi’s Stadium.
Foster has been ruled out with a hamstring injury, the team announced on Wednesday.
Veteran linebacker Malcolm Smith will step in as the starter for the first time at the role of weakside linebacker the club envisioned him playing when he was signed to a contract on the first day of free agency in 2017. Smith missed all of last season with a torn pectoral. He was moved to strong-side linebacker this season, as Foster and rookie Fred Warner took over at the inside positions.
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The 49ers will not have the services of strong safeties Jaquiski Tartt (shoulder) and Antone Exum (conussion), the club also announced.
Tyvis Powell is expected to start at strong safety. Jimmie Ward making his second straight start at free safety, in place of Adrian Colbert, who is out for the season with an ankle injury.
The status of quarterback C.J. Beathard remains in question due to a right wrist injury. The 49ers will likely make a game-time decision whether Beathard can suit up or start in Thursday’s game. Nick Mullens would be the starter if Beathard is unable to play.
Running backs Matt Breida (ankle) and Raheem Mostert (ankle), wide receiver Pierre Garcon (shoulder, knee), guard Weston Richburg (knee) and cornerback Richard Sherman (calf, heel) are also listed as questionable. .
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49ers injury report
OUT
S Antone Exum (concussion)
LB Reuben Foster (hamstring)
S Jaquiski Tartt (shoulder)
Questionable
QB C.J. Beathard (right wrist)
RB Matt Breida (ankle)
WR Pierre Garcon (shoulder, knee)
RB Raheem Mostert (ankle)
C Weston Richburg (knee)
CB Richard Sherman (calf, heel)
49ers practice report
WEDNESDAY
Did not practice
S Antone Exum (concussion)
LB Reuben Foster (hamstring)
S Jaquiski Tartt (shoulder)
Limited practice
QB C.J. Beathard (right wrist)
RB Matt Breida (ankle)
WR Pierre Garcon (shoulder, knee)
RB Raheem Mostert (ankle)
C Weston Richburg (knee)
CB Richard Sherman (calf, heel)
Full participation
G Mike Person (ankle)
T Joe Staley (ankle)
Raiders injury report
Out
T T.J. Clemmings (knee)
Questionable
CB Gareon Conley (foot)
G Kelechi Osemele (knee)
CB Daryl Worley (shoulder)
Raiders practice report
WEDNESDAY
Did not practice
T T.J. Clemmings (knee)
Limited practice
CB Gareon Conley (foot)
G Jon Feliciano (ribs)
WR Dwayne Harris (shoulder)
C Rodney Hudson (ankle)
DE Bruce Irvin (pectoral)
G Gabe Jackson (pectoral)
T Kolton Miller (knee)
G Kelechi Osemele (knee)
CB Daryl Worley (shoulder)