49ers status report: Davis questionable

Two-time Pro Bowl tight end Vernon Davis missed his third consecutive practice Friday with left ankle and knee injuries and was officially listed by the San Francisco 49ers as being questionable to play Sunday at the Arizona Cardinals.

Backup tight end Vance McDonald, who is nursing a right knee injury, is also questionable, keeping the spotlight on third-stringer Derek Carrier.

Quarterback Colin Kaepernick, who appeared on the injury report Thursday for the first time with a back issue but was a full participant then, was again a full participant Friday. He is listed as probable.

Following is the 49ers' status report for Sunday:

OUT: C Marcus Martin (knee)

QUESTIONABLE: CB Tramaine Brock (toe), RT Anthony Davis (hamstring), TE Vernon Davis (ankle/knee), TE Vance McDonald (knee)

PROBABLE: RB Carlos Hyde (calf), QB Colin Kaepernick (back), DL Justin Smith (not injury related), LT Joe Staley (knee)