ALAMEDA -- Darren McFadden was absent as practice got underway Thursday, meaning it's likely he won't play against the Kansas City Chiefs and conceivable that he has played his last game as a Raider.

Raiders coach Dennis Allen said Wednesday, "if he's able to do anything (Thursday), that's a good sign. If not, then he's probably doubtful."

McFadden emerged briefly with a member of the athletic training staff and did some light drills, but was probably on the field less than 10 minutes before going back inside.

With two games remaining, McFadden is no lock to make it back to the field.

Asked if he expected McFadden to play before the season is over, Allen said, "Well, I don't know. We'll see. He's getting closer. But again, we're right at the end, so either he's going to be able to go or he's not and that will be something we'll continue to evaluate.''

McFadden is in the final year of the contract he signed as the No. 4 pick out of Arkansas in 2008. He has played in eight games this season with seven starts and is currently the team's third-leading rusher behind Rashad Jennings (588 yards) and Terrelle Pryor (508 yards) with 365 yards on 103 carries.

Also not at practice was defensive tackle Vaughn Walker, who has not been cleared from a concussion sustained against the New York Jets. Rookie Stacy McGee is the likely starter along with Pat Sims if Walker can't play against Kansas City.

Wide receiver Denarius Moore, out for three games with a shoulder injury, was at practice and appears to be likely to face Kansas City. In his absence Andre Holmes has played well in the last two games with 10 receptions for 199 yards.

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