A difficult season for Flyers captain Sean Couturier continues. The 31-year-old sustained an undisclosed injury in Monday’s 4-3 overtime loss to the Islanders, and head coach John Tortorella is “not sure when he’ll be back,” he told reporters today (via Jordan Hall of NBC Sports Philadelphia). He carries a day-to-day designation, though, and hasn’t specifically been ruled out of Friday’s contest against the Sabres. He’s without a point and has a -4 rating in six games since returning from back-to-back healthy scratches in mid-March, not the response he or Tortorella was looking for. Couturier’s recent struggles have been a significant reason why the Flyers’ playoff chances have dropped by about 25% in the past few weeks, as they now find themselves in a nearly neck-and-neck race with the Capitals and Red Wings for two playoff spots. He’s logged over 15 minutes in a game just twice since the beginning of March and has played mostly fourth-line minutes since his healthy scratches. The 2011 eighth-overall pick has at least managed to remain mostly healthy after missing most of the last two seasons due to back injuries, but his offensive impact has been greatly diminished with 11 goals and 36 points in 70 games, his worst point-per-game pace in nine years.