Updated

Alameda, CA (SportsNetwork.com) - Oakland Raiders quarterback Terrelle Pryor remains on track to return under center for this weekend's game against the San Diego Chargers, with the team declaring him probable on Friday's final injury report.

Raiders head coach Dennis Allen had stated on Wednesday that Pryor, who sat out last week's 24-14 loss to Washington with a concussion he sustained the previous Monday, had been fully cleared to participate in Sunday's AFC West clash.

While Oakland will have its starting signal-caller back to face the Chargers, running back Darren McFadden is unlikely to go after injuring his hamstring against the Redskins.

The brittle former first-round pick, who has missed at least three games in each of his five NFL seasons due to various ailments, did not practice at all this week and is listed as doubtful.

Fullback Marcel Reece, who left the Washington game with a sprained left knee, is questionable to play on Sunday. If Reece is inactive, journeyman Rashad Jennings figures to garner most of the backfield work against San Diego.

The Raiders are also expected to be without starting center Stefen Wisniewski, who sprained his knee last week as well and has been termed doubtful. Three other offensive linemen -- tackles Menelik Watson (knee) and Tony Pashos (groin) and guard Lucas Nix (ankle) -- are all questionable.

Watson, Oakland's second-round pick in April's draft, has yet to play since undergoing a knee scope in the preseason.

Safety Tyvon Branch, who injured his ankle back in Week 2, will sit out a third straight week.