Todd Bertuzzi didn't play in Saturday's regular-season finale ... but not because of the strained neck that was originally listed as the cause. Coach Mike Babcock said after the 7-2 win over Chicago that Bertuzzi was diagnosed with a concussion after colliding with goalie Chris Osgood in a game last Thursday. A concussion means that there's a chance that Bertuzzi might not be cleared to play in Game 1 of the playoffs ... although both Babcock and general manager Ken Holland believe that Bertuzzi will be in the lineup.