Bruins' Spooner sidelined indefinitely with concussion

Boston Bruins forward Ryan Spooner has been diagnosed with a concussion and will be sidelined indefinitely in accordance with NHL protocols, general manager Don Sweeney announced.

The injury occurred during the third period of Monday's loss in Ottawa.

Spooner's injury comes as the Bruins sit third in the Atlantic Division and in search of their first playoff berth in three years. Spooner had also been playing better as of late under interim head coach Bruce Cassidy, who had slotted him back in a familiar third-line center role.

The 25-year-old appeared in 65 games for the Bruins this season, with 11 goals and 23 assists to his credit, good for sixth in team scoring.