Gagne is on track to suit up Wednesday against the Red Wings. In his introduction to the Boston lineup on Wednesday, Gagne is slated to work on the Bruins' fourth line, along with Daniel Paille and Ryan Spooner. The 34-year-old Gagne hasn't played in an NHL regular season game since 2012-2013, so a wait-and see approach is in order here, though from the Bruins' perspective, the team hopes that the veteran winger has enough left in the tank to help provide a much-needed spark up front.