Oakland Raiders wide receiver Javon Walker remained hospitalized with a concussion and a battered face yesterday, one day after he was beaten, robbed and left unconscious on a Las Vegas street after a night of partying.

Police said a large amount of cash and some jewelry were taken from Walker, who suffered “a moderate concussion and significant injuries to his face.”

Police Lt. Clinton Nichols said detectives are retracing Walker’s activities in the hours before he was found injured Monday morning on a street off the Las Vegas Strip.

“That’s one of the first things we do, backtrack what he did and where he stayed,” Nichols said, adding that the investigation was still in the early stages.

“We knew there was a large amount of cash taken, and some jewelry.”

Walker, 29, signed a $55-million US, six-year deal with the Raiders after being released by the Denver Broncos in February.

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