Starting DT Richard Seymour practiced Wednesday for the second time this week, but he was limited and said he's not sure if he'll be able to play Sunday against Kansas City.
Seymour has missed the past five games after suffering what he called a "Grade 2" hamstring tear.
"We'll see how the rest of the week goes," Seymour said. "Still got two more really good practices before it's time to make a decision. Obviously, I want to keep my emotions in check. Obviously, I want to be out there, and I want to play, but I've got to be able to be effective if I'm out there. It's a fine line.
"If I'm healthy, I'm going. If I'm ready, I'll be there. ... Hamstrings, it's not something you can push through. It's not like you can tape it up and go."
Raiders coach Dennis Allen said he thought Seymour "looked well" at practice.
"I think there's a good chance he's going to play this week."
Injury report: Starting SS Tyvon Branch missed practice with ankle and neck injuries, and rookie DT Christo Bilukidi was out because of an illness.
Starting RT Khalif Barnes was limited in practice because of a painful right triceps injury that he suffered late in the Cleveland game two weeks ago. He's been playing and practicing with a brace.
Starting RB Darren McFadden, who re-tweaked his right ankle Thursday night against Denver in his return after missing four straight games, practiced fully Wednesday.
Starting left CB Michael Huff (wrist), backup S Mike Mitchell (neck), backup DE Jack Crawford (toe) and Seymour practiced but were limited.
For the Chiefs, starting WR Dwayne Bowe (ribs) has already been ruled out for Sunday's game. Four injured Chiefs missed practice Wednesday: OT Branden Albert (back), G Russ Hochstein (back), C Ryan Lilja (knee) and S Abram Elam (quad). Albert and Lilja are starters. Starting CB Brandon Flowers and ILB Derrick Johnson were limited with hamstring injuries.
Follow Raiders reporter Eric Gilmore on Twitter @CBSRaiders.
