Washington Capitals defenseman Matt Niskanen hit Flyers forward Sean Couturier knee-on-knee in the final minute of the first period this afternoon.
Couturier went to the room favoring his right leg, but did return in the second period.
Niskanen was assessed a minor penalty for kneeing on the play.
Last month Niskanen knocked Scott Laughton from a game between the Flyers and Capitals. Laughton was forced to miss seven games as a result.