Penguins center Evgeni Malkin will not need surgery on his dislocated left shoulder, general manager Ray Shero confirmed Monday, but there is no timetable for how long the 20-year-old Russian will be out of the lineup. "We need to see over the course of time with the rehab now he responds," Shero said. "Everybody's different. I don't want to say two weeks when it could be longer or four weeks when it could be shorter. We'll just go as he responds." Shero said the team should know later in the week precisely when Malkin will be able to return to the lineup. The Penguins open the season Oct. 5 against the Philadelphia Flyers.