Addai should return for Colts on Sunday

Colts running back Joseph Addai expects to return Sunday at Oakland after missing the past eight games with a nerve injury in his left shoulder, the first positive news on the injury front for Indianapolis in quite a while.

"I feel like it's a great chance. I feel like I'm heading in the right direction," Addai said Thursday, one day after participating fully in practice. "I felt good. I didn't set myself back. Really, I'm just happy to put on a uniform and just get back into it."

Linebacker Clint Session also likely will play after missing the past seven games with a broken arm and a dislocated elbow. Their returns coincide with the Colts losing wide receiver Austin Collie for the season. He sustained a concussion last Sunday against Jacksonville.

Addai rushed for 128 yards and a touchdown against Washington in the Colts' Week 6 win before hurting the shoulder.

The Colts have averaged 95 yards rushing with Addai and 78 without him.

Favre misses practice

Brett Favre missed his second straight day of practice after showing no improvement during a concussion test. Vikings coach Leslie Frazier says his quarterback is still showing symptoms. Frazier, however, declined to rule out Favre for Sunday night's game against Philadelphia.

Favre was injured Monday night when Bears defensive end Corey Wootton slammed him to the turf.

Favre's teammate, Adrian Peterson is hobbling around with a painful thigh bruise.

Peterson injured his left thigh two weeks ago when he collided with quarterback Tarvaris Jackson on a handoff. He missed the game against Chicago on Monday night, the first time he's sat out since missing two games with a knee injury his rookie season in 2006.

49ers change QB again

San Francisco is going back to Troy Smith as its starting quarterback for Sunday's game.