Krejci, who suffered a midsection injury Oct. 11 during practice and has missed two games, skated with the team Tuesday morning but is still day to day.
"Krejci's not ready to go yet. He's obviously starting to skate with us so he's inching closer to returning but not tonight," coach Claude Julien said before the game.
Defenseman Steve Kampfer, who sprained the medial collateral ligament in his left knee during a preseason game Sept. 29, also skated with the team Tuesday morning and could be cleared for contact Wednesday.
He suffered a similar injury on his right knee toward the end of last season while playing with the Providence Bruins of the AHL.
Tuukka Rask will get his second start of the season Tuesday. He is 0-1-0 with a 1.02 GAA and .972 save performance after suffering a 1-0 loss to Colorado on Oct. 10 despite a brilliant 35-save performance.
James Murphy covers the Bruins for ESPNBoston.com. Ask a question for his next Bruins mailbag here.