MacArthur (undisclosed) is doubtful for Thursday's regular-season opener against the Sabres, Bruce Garrioch of the Ottawa Sun reports.

EDGE Analysis

MacArthur was absent from Monday's practice, which was the first indication that there may be trouble brewing on the injury front for the 30-year-old winger. The severity of the injury remains unclear, but don't count on MacArthur suiting up Thursday against Buffalo. If he is forced to miss Thursday's contest, his next chance to return to Ottawa's lineup will come Saturday against Toronto.