"A play Kamerion Wimbley would rather forget was cued up at a recent Raiders defensive meeting.

It was tape of Minnesota Vikings running back Adrian Peterson breaking off a 64-yard touchdown run in the fourth quarter of a 34-20 win over Wimbley's Cleveland Browns in the 2009 season opener.

"He just threw a couple of defensive backs aside," Wimbley said. "It was a phenomenal run."

Peterson, the NFL's fifth-leading rusher with 846 yards this season, plays against the Raiders for the first time Sunday at Mall of America Field. The last time the Raiders played the Vikings in the regular season, in November 2007, Peterson was sidelined with a knee injury.

"I'm pretty pumped up to play against these guys," Peterson said Wednesday in conference call with Bay Area media."