Peterson (knee) may be limited in Wednesday's practice or miss it altogether, but head coach Bruce Arians is confident that he will play in Sunday's game against the Redskins, Alex Marvez of Sirius XM NFL Radio reports.

Peterson is currently dealing with soreness in his knee and was clearly limping in some portions of Week 12's game against Atlanta. That being said, he reportedly suffered no structural damage in his knee, suggesting that any limitations he faces in practice this week will merely wind up precautionary.

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