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Arizona Cardinals running back Adrian Peterson (23) runs against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Nov. 5. (Ben Margot/AP)

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Peterson oldest to get 37 carries in a game, leads Cards to win

After beginning the season as an afterthought in New Orleans, Adrian Peterson showed he still has what it takes to be a workhorse just when Arizona needed it most.