Graves was forced to leave Pittsburgh's game on Thursday after just seven shifts and 5.27 TOI due to a concussion and is now considered out indefinitely as the Penguins are without a timetable for his return. The 28-year-old stay-at-home defensemen has enjoyed another solid but quiet season in Pittsburgh, with his three goals, 14 points, 30 PIMs and +10 plus/minus through 70 games before his injury.
