Lines: Grzelcyk questionable vs Penguins

Coach Bruce Cassidy said Matt Grzelcyk will be a game-time decision and will skate for pre-game warmups.

If he's unable to play, Connor Clifton will round out the defense corps.

Cassidy noted that Grzelcyk is close to a return and expects him to return on Thursday, if he does not tonight.

Grzelcyk missed Saturday’s contest with an injury, while Clifton played on the left side with Brandon Carlo.

The Bruins are anticipated to line up as follows, assuming no Grzelcyk:

Forwards

Brad Marchand - Patrice Bergeron - Jake DeBrusk

Nick Ritchie - David Krejci - Jack Studnicka

Trent Frederic - Charlie Coyle - Craig Smith

Anders Bjork - Sean Kuraly- Chris Wagner

Defenseman

Jeremy Lauzon - Charlie McAvoy

Grzelcyk/Clifton - Brandon Carlo

Jakub Zboril - Kevan Miller

Goaltenders

Tuukka Rask should start.

For Pittsburgh, Drew O’Connor was recalled from the taxi squad on emergency basis and will play in his first NHL game.

O’Connor, a former Dartmouth standout, was a member of the 2019 Bruins development camp.