OTTAWA, Ontario -- Ottawa forward Bobby Ryan has a concussion and is joining Matt Duchene on the Senators injured reserve.
Senators' general manager Pierre Dorion says both were injured in Thursday's 5-2 loss to Montreal.
Ryan is out indefinitely and Duchene will miss a week or more with a lower-body injury.
Ryan has six goals and 12 assists, while Duchene has 12 goals and 22 assists in 29 games.