An RDS report late Wednesday suggested that injured Ottawa Senators Jason Spezza could need more time than expected to return from his back disc surgery and could still be out for another month, but Senators coach Paul MacLean says he was unaware of anything new development in his recovery. “I have no idea,” MacLean said following the Senators’ 4-3 shootout loss to the Montreal Canadiens. “I don’t know. Not that I know of. I don’t know anything about that. I was here all day, just like (the media).” Spezza had returned to skating to light skating in recent weeks — away from his teammates — and appeared to be on track to get back into the lineup, perhaps before the end of March.