The banged-up Bruins will be without starting goalie Tuukka Rask for an uncertain period of timewhile he recovers from a concu sion, adding to the injury Walt Tkaczuk Jersey woes that have contributed to their slow start. Rask suffered the injury in a collision with rookieAnders Bjork during Wednesday's practice. He needed a sistance leaving the ice, and the Bruins had taken their time in the diagnosis of the injury. He will follow the Esa Tikkanen Jersey NHL's concu sion protocol, the team said Thursday. POWER RANKINGS: AntonKhudobinwill start until Rask is healthy, beginning Thursday against the Canucks.Zane McIntyre was called up from AHL Providence to serve as backup. Rask had a concu sion scare last season when he was removed from a game against the Predators Carol Vadnais Jersey upon being hit in the maskby a puck. Like the Bruins (2-3-0), he has stumbled out of the gate in 2017-18 with a disappointing.882 save percentage in his four starts. Not long after he went down in practice, the Bruins announced forward Ryan Spooner will mi s 4-6 weeks with a groin injury. Veterans Reijo Ruotsalainen Jersey Patrice Bergeron (lower body John Vanbiesbrouck Jersey ) and David Backes (diverticulitis) haveyet to play this season. The Bruins have compensated for all the injuries by starting as many as five rookies, including Bjork, to mixed returns. Backes will return to the lineup Thursday, while Bergeron is considered a game-time decision.