Tarvaris Jackson questionable for Sunday

RENTON, Wash. -- Seattle Seahawks backup quarterback Tarvaris Jackson is listed as questionable on the injury report because of an illness. Jackson did not practice Thursday. Seahawks coach Pete Carroll wasn't asked about Jackson's status Friday.

If the Seahawks feel Jackson can't play Sunday at San Francisco, they will need a roster move to activate rookie quarterback B.J. Daniels, who is on the practice squad. Daniels started the season with the 49ers, but was picked up by Seattle when San Francisco released him Oct. 2. Daniels was released on Nov. 16 and signed to the practice squad two days later.

Receiver Percy Harvin and cornerback Brandon Browner won’t play Sunday, but the Seahawks will have two starters on defense – linebacker Bruce Irvin and defensive end Chris Clemons -- who didn’t play in the first game against the 49ers this season.

And San Francisco has receiver Michael Crabtree, who didn’t play in the 29-3 loss to Seattle on Sept. 15. Crabtree made his season debut last week.

“They have a great boost in their leading receiver coming back,” Carroll said. “They look well equipped and we’re in pretty good shape ourselves, so we don’t have any excuses in this one.”

Harvin continues to be “week to week’’ Carroll said, with soreness in his surgically-repaired hip. Browner continues to have problems with a severely strained groin, but he also is awaiting news on his appeal of a possible one-year suspension for violating the NFL’s substance-abuse policy.

Carroll said he hasn’t heard anything on Browner’s appeal, but added that Browner did not improve this week on his groin injury.

“He came out on the field and worked [Wednesday],” Carroll said. “But he did not make much progress, so we didn’t bring him back out.”

Irvin, who has a thigh bruise, returned to practice Friday after sitting out earlier this week. Carroll said Irvin was ready to go. He was in the second game of a four-game suspension for PEDs in the first game with the 49ers.

Clemons missed the first two games of the season while still rehabbing from offseason knee surgery.