David Krejci day-to-day with core injury

Claude Julien said David Krejci suffered a core injury during practice yesterday. Krejci is day-to-day. The Bruins have not determined whether Krejci will be available for Saturday’s game against Chicago. During camp, Krejci complained of groin tightness.

With Krejci unavailable, Julien confirmed that Tyler Seguin will get a shot centering Milan Lucic and Nathan Horton. Jordan Caron, a healthy scratch in the last two games, will skate on the third line.

During the preseason, Seguin was more effective at center than wing.

“He seemed a little more comfortable,” Julien said of Seguin in the middle. “But not to the point where he could surpass our other guys that are there at right now. We certainly don’t want to make him a third- or fourth-line centerman. We need him to play more on those top lines. It was a situation where he seemed a little bit more comfortable. It’s been his position his whole career.”

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* Tim Thomas and Cam Ward were the first goalies off for their respective clubs. Expect the two to square off in goal tonight.

* Chris Kelly will serve as the second alternate captain for the first time this season. Kelly will wear the second “A” on the road for the first half of the year.

* Tomas Kaberle will not receive his championship ring today. The Bruins will give it to Kaberle next Tuesday when the Hurricanes visit TD Garden.

@GlobeFluto