GREEN BAY – The Seahawks showed last week their league-leading run game doesn't necessarily suffer when a substitute has to take over.

With Chris Carson sidelined against the Rams, Rashaad Penny stepped in for Seattle and promptly topped 100 yards, keeping the Seahawks first in the league in rushing offense at 152.2 yards per game.

Seattle actually topped 200 yards in the close loss to L.A. with quarterback Russell Wilson chipping in 92 along with Penny's 108.

"Obviously their run attempts are a primary focus for them," Head Coach Mike McCarthy said prior to Tuesday's practice. "You look at the last game and the production they're getting. Their run game is a huge challenge."

Carson, who leads them with 497 rushing yards on the season, could be back on Thursday night. Mike Davis has 346 yards, Penny now has 254 after his big day, and Wilson has chipped in 210. All of them are averaging at least 4.4 yards per attempt.

Fortunately for the Packers, the defensive front is the healthiest area on that side of the ball. Outside linebacker Nick Perry left the last game with a knee injury, but otherwise, the injuries on defense are in the secondary.

McCarthy said the Packers' injured players would mostly be rehabbing during Tuesday's jog-through practice, and their availability would be determined more on Wednesday, when the team works out in Seattle as the final prep for Thursday night's game.

Packers.com will have more following locker room interviews.