Grzelcyk has been sidelined by a concussion since Game 2 but is expected to draw back into the Bruins lineup for Game 5. Grzelcyk was on the ice for Wednesday’s practice and Thursday’s optional gameday skate and will likely replace Zdeno Chara (jaw), who is also a game-time decision. Grzelcyk is expected to play on the top-pairing and second power-play unit.
