Harris (thigh) didn't practice Friday, Zack Cox of NESN.com reports.
Harris -- who missed last Thursday's loss to the Bills -- is looking iffy for Monday's contest against the Cardinals, though he has one more chance Saturday to log practice reps before the Patriots' final injury report of the week is posted. If Harris remains sidelined versus Arizona, Rhamondre Stevenson would once again be in line to handle the bulk of New England's backfield work.