Patrice Bergeron/By S. Bradley

Patrice Bergeron/By S. Bradley

It was another roller-coaster afternoon and evening for the 2013 Bruins Tuesday, which started with the trade for Jaromir Jagr.

By the end of the night the Bruins rode a 45-save effort by Anton Khudobin to a 3-2 win against Ottawa at TD Garden, and finished the game without the services of Patrice Bergeron.

Here’s my game story from NHL.com.

Bergeron seemed to injure his head in a collision with Ottawa forward Colin Greening’s elbow or forearm early in the second period. Coach Claude Julien didn’t offer any update on the star center. If Bergeron, who has three NHL concussions in his past, misses an extended period of time, the Bruins will have to rely on their depth and their experience getting by without a key cog in past seasons.

“We’ve got a pretty deep lineup and it gives guys opportunities to step up if someone’s injured,” Bruins forward Brad Marchand said. “Hopefully that’s not the case. Hopefully [Bergeron’s] fine. But if he is [out], we’ll have to deal with it and guys will have to step up.”

•The Bruins are looking forward to an offensive boost from Jagr’s addition, as Bruins general manager Peter Chiarelli explained. Chiarelli has good reason to be elated because the price was relatively low and he can continue to pursue extra parts before the 3 p.m. trade deadline Wednesday.

•Julien gave his players Wednesday off. Chiarelli will work the phones all day and then address the media around 5 p.m. to discuss the trade deadline. The Bruins are scheduled to host New Jersey at TD Garden Thursday.