Kevin Kolb goes through full workout, should play Sunday; Ancho steps up

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Arizona Cardinals quarterback Kevin Kolb passes during the second half of an NFL football game against the Baltimore Ravens in Baltimore on Sunday, Oct. 30, 2011. The Ravens defeated the Cardinals 30-27. (AP Photo/Nick Wass) By Nick Wass Arizona Cardinals quarterback Kevin Kolb passes during the second half of an NFL football game against the Baltimore Ravens in Baltimore on Sunday, Oct. 30, 2011. The Ravens defeated the Cardinals 30-27. (AP Photo/Nick Wass) By Nick Wass

TEMPE, Ariz. (AP) -- Quarterback Kevin Kolb went through a full workout on Wednesday, the strongest indication yet that he finally is ready to return to the Arizona Cardinals' lineup.

Coach Ken Whisenhunt tempered his optimism, though, waiting to see how Kolb's injured foot responds on Thursday.

Kolb went through a limited workout last Wednesday and was optimistic for a return then, but the foot did not respond well and he sat out Sunday's 23-20 victory over St. Louis.

He has missed four games with a right turf toe and bruise on the side of the same foot. Arizona, with backup John Skelton at quarterback, has gone 3-1 in Kolb's absence.

But Skelton has struggled, especially in the last two games.
 
Rookie linebacker Sam Acho stepping up for Cardinals

As smart as he is -- and he is very smart -- Sam Acho says he felt "overwhelmed" when he first saw the size of the Arizona Cardinals' playbook.

Not only was he going to have to study a new defense cover to cover, he was going to have to learn a new position, moving from the defensive end role he had as a collegiate standout at Texas to outside linebacker in the NFL.

Eleven games into his rookie season, Acho has taken over the starting job from injured Joey Porter and flourished.

In last Sunday's 23-20 win at St. Louis, Acho had two sacks, two forced fumbles and one fumble recovery.