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SANTA CLARA -– Neither Vernon Davis nor Anthony Davis practiced in any capacity on Thursday, casting more doubt on their availability for Sunday’s game against the Kansas City Chiefs.
Tight end Davis sustained back spasms and right tackle Davis sustained sprains to his left knee and ankle in the 49ers’ game Sunday against the Philadelphia Eagles. Cornerback Tramaine Brock will miss his fourth consecutive starter with a sprained big toe.
Kansas City wide receiver Donnie Avery has been ruled out for the game due to a sports hernia. A.J. Jenkins, the 49ers’ first-round draft pick in 2012, is expected to see significant playing time in his place.
49ERS
Did not participate
CB Tramaine Brock (toe)
T Anthony Davis (knee, ankle)
TE Vernon Davis (back)
Limited participation
S Antoine Bethea (ankle)
DE Tony Jerod-Eddie (shoulder)
C Marcus Martin (knee)
TE Vance McDonald (knee)
S Eric Reid (hamstring)
Full participation
WR Michael Crabtree (foot)
RB Frank Gore (back)
P Andy Lee (right ankle)
DE Justin Smith (not injury related)
CHIEFS
Out (definitely will not play)
WR Donnie Avery (groin)
Did not participate
S Eric Berry (ankle)
Limited participation
RB Jamaal Charles (ankle)
CB Marcus Cooper (knee),
LB Tamba Hali (knee)
CB Sean Smith (groin)
Full participation
RB De'Anthony Thomas (hamstring)
LB Frank Zombo (hamstring)
