The 49ers do not expect starting wide receiver Pierre Garçon to be available for Sunday's game against the Arizona Cardinals due to a knee issue.
Neither Garçon nor center Weston Richburg took part in practice Friday. The 49ers list Richburg, along with running back Matt Breida and cornerback Richard Sherman as questionable.
Breida (ankle) and Sherman (calf) returned to limited practice on Friday.
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The 49ers have a quick turnaround in Week 9. After playing at Arizona on Sunday, the 49ers return to action next Thursday to face the Raiders in Week 10. It is possible that players, such as Breida, Sherman and Richburg, will play in just one of those two games.
Garçon has battled knee and shoulder issues for at least three weeks. His production has tailed off from a year ago when he caught 40 passes for 500 yards through eight games before going on injured reserve with a neck injury. This season, Garçon has just 21 catches for 230 yards in seven games.
49ers injury report
Doubtful
WR Pierre Garcon (shoulder, knee)
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Questionable
RB Matt Breida (ankle),
C Weston Richburg (knee)
CB Richard Sherman (calf)
49ers practice report
FRIDAY
Did not practice
WR Pierre Garcon (shoulder, knee)
C Weston Richburg (knee)
Limited practice
RB Matt Breida (ankle)
CB Richard Sherman (calf)
Full participation
LB Reuben Foster (shoulder)
G Joshua Garnett (toe)
"G Mike Person (knee)
WR Dante Pettis (knee)
T Joe Staley (not injury related)
S Jaquiski Tartt (shoulder)
DE Solomon Thomas (thigh)
CB Jimmie Ward (hamstring)
Cardinals injury report
Out
S Tre Boston (shoulder, ribs)
G Jeremy Vujnovich (hamstring)
Questionable
K Phil Dawson (right hip)
TE Jermaine Gresham (heel)
G Mike Iupati (back)
DT Corey Peters (ankle)
G Justin Pugh (hand)
Cardinals practice report
FRIDAY
Did not practice
S Tre Boston (shoulder, ribs)
DT Corey Peters (ankle)
G Jeremy Vujnovich (hamstring)
Limited practice
K Phil Dawson (right hip)
TE Jermaine Gresham (heel)
G Mike Iupati (back)
G Justin Pugh (hand)
Full participation
LB Josh Bynes (wrist)
WR Larry Fitzgerald (hamstring)
QB Josh Rosen (toe)
TE Ricky Seals-Jones (forearm)
CB Jamar Taylor (back)