Javon Walker said he is healthy, happy and performing as well as any of the other wide receivers on the Raiders roster. As for why he isn't playing much, he has no idea.

"I don't know what he's looking at," he said in response to coach Tom Cable saying Walker needs work getting in and out of breaks, running fast and separating from cornerbacks.

"I feel like I'm doing fine. I'm sure there's more stuff going on than what we know, but I'm saying I can run, play."

Walker wasn't active for Oakland's regular-season opener against San Diego. He played four downs against Kansas City on Sunday, in part because of injuries to Chaz Schilens, Nick Miller and Johnnie Lee Higgins.

He said he understands Cable's desire to play some of the younger receivers. He doesn't comprehend how his inactivity is being characterized as having something to do with his ability.

"I'm doing the same thing that any receiver here is doing," said Walker, who underwent knee surgery in the offseason. "So, I can sit (out) as long as there's other reasons behind it, but (I shouldn't be) sitting because I can't come in and out of breaks, because I can do that."

Cable said Walker is caught in the proverbial numbers game, playing only when a certain situation dictates.

"(It's about) who has been productive," Cable said. "That's number one, and we're about to get very healthy there, too."

  • Upon further review, Cable said he's decided to leave Chris Morris at center and use Erik Pears as the replacement for Robert Gallery at left guard. Cable moved Morris to left guard when Gallery went down with a broken left leg late in the Chiefs game and inserted Samson Satele into the center spot. Cable, though, doesn't want to take Morris out of the center position because of his importance as the signal-caller and the person who anchors the line. Also, Satele struggled during training camp and exhibition games.