Harris (thigh) isn't in line to play Thursday against the Bills, Ian Rapoport of NFL Network reports.
Harris emerged from last Thursday's loss at Minnesota with a thigh injury that has left him week-to-week. Considering the prognosis, a multi-game absence could be in store for the fourth-year pro. As long as Harris is sidelined, Rhamondre Stevenson is even more secure as the Patriots' lead running back, but rookies Pierre Strong and Kevin Harris become candidates to get additional backfield reps in the short term.