Cards' Kolb, Rhodes out for Sunday

The Arizona Cardinals announced quarterback Kevin Kolb and safety Kerry Rhodes are officially out for Sunday's matchup with the Minnesota Vikings.

Kolb suffered a rib injury in Arizona's 19-16 overtime loss to Buffalo last week. John Skelton will start in his place.

Rhodes (back) was also injured last week against Buffalo.

The Cardinals also listed fullback Anthony Sherman (knee) and cornerback Greg Toler (hamstring) as doubtful.

Cornerback Michael Adams (hamstring) was a full participant in Friday's session while tight end Todd Heap (knee) was limited, but both are listed as questionable. Linebacker Reggie Walker (head) did not practice all week, but is considered questionable as well.

Defensive tackle Darnell Dockett (hamstring) and linebackers Paris Lenon (knee) and Quentin Groves (hamstring) are all listed as probable for Sunday.