The Bruins could be without two stalwarts on the back end for Game 1 against the Ottawa Senators.

Bruins general manager Don Sweeney said that Brandon Carlo won't play in Game 1 and that Torey Krug is unlikely to suit up.

The 6-foot-5 Carlo has provided Boston with a second tower of power on their first D pairing alongside Zdeno Chara this season. The 20-year-old rookie averaged 20:49 of ice time with a plus-9 rating and 16 points.

Krug is coming off a career-high 51 points this season. If he is unable to go, Boston will be losing their top puck mover and primary power-play quarterback.

Copyright © 2017 Score Media Ventures Inc. All rights reserved. Certain content reproduced under license.