MacArthur (concussion) has been placed on injured reserve according to the NHL Media site.

EDGE Analysis

MacArthur will visit a concussion specialist in the near future after suffering his second in as many season. He missed all of last year with the injury but had made a recovery before taking a hit from teammate Patrick Sieloff that resulted in his second. More on his prognosis could surface following the doctor visit but he will at least begin the season on IR.