Couturier left the ice with an undisclosed lower-body injury early during Thursday's 4-3 overtime loss to the New Jersey Devils, which gave the Flyers a 2-1 series deficit.
Couturier finished the regular season with 13 goals and 14 assists for 27 points, and had played an average of 16:50 minutes entering Thursday's Game 3. He has added three goals and an assist for four points in the playoffs, but hasn't registered a point yet during the second round.
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