ARLINGTON, Texas—Seahawks defensive end Frank Clark, who leads the team with 8.0 sacks, was a late addition to the injury report this week, being listed as questionable with a toe injury after being limited in Friday's practice.

That injury will not keep Clark from playing against the Dallas Cowboys, however, as he is active. Also active is cornerback DeShawn Shead, who was activated off the Physically Unable to Perform list on Saturday. This will be Shead's first game since tearing his ACL in Seattle's playoff loss at Atlanta more than 11 months ago. While Shead likely won't have a big role on defense immediately, expect him to see playing time on special teams.

Two other players listed as questionable, safety Bradley McDougald and tight end Nick Vannett, are also active.

The Seahawks are without two players due to injury, linebacker D.J. Alexander, who was ruled out Friday with a concussion, and defensive tackle Nazair Jones, who will miss a fourth straight game with an ankle injury.

Of note for the Cowboys, starting tackles Tyron Smith and La'el Collins, who were both listed as questionable Friday, are active. Starting cornerback Orlando Scandrick, who was also listed as questionable, is inactive due to a back injury.

Seattle Seahawks

RB Eddie Lacy

CB Mike Tyson

C Joey Hunt

LB D.J. Alexander

WR David Moore

DT Nazair Jones

DE Quinton Jefferson

Dallas Cowboys

WR Brice Butler

CB Orlando Scandrick

LB Justin Durant

LB Justin March-Lillard

DE Richard Ash

TE Blake Jarwin

DE David Irving