WILMINGTON — The Bruins announced Friday that they have signed Darmtmouth College forward Matthew Lindblad to an entry-level contract.

The 23-year-old Lindblad stands at 6-foot-1 and 200 pounds. In 30 games for Dartmouth this season, he scored 10 goals and added 18 assists for 28 points.

Jaromir Jagr wasn't happy with his performance in his Bruins debut. (AP)

Jaromir Jagr scored the Bruins’ only goal in his debut with the team Thursday night, but after the game was surprisingly critical of his performance.

Jagr, 41, said he was “so tired” and that he struggled in a “tough” first showing for Boston. He skated on the second line with Tyler Seguin and Brad Marchand, whom he said he apologized to for his performance (19:12 of ice time, an entire power play and five shots on goal and his 15th goal of the season).

“I told them I’ve got to get better. I felt bad for them that they have to play with me,” he said. “I’ve got to get better, that’s for sure.”

When asked to explain what he meant by tired — whether it was exhaustion in the game or being tired from the last two days since being traded from the Stars — Jagr said it was a combination of things and that he had difficulty sleeping Wednesday.

“I don’t know. Maybe the stress a little bit, and just surprised that I got traded and then I had to pack and get ready,” he said. “I didn’t sleep very well last night. I slept only two hours, I don’t know why. It just hits you. I have to go and sleep and it’s going to get better.”

Jagr scored the only goal of the game Thursday when he drove to the net and Marchand bounced a pass off Jagr’s left skate and past Martin Brodeur.

“I think that was the first time I scored with my leg,” Jagr said. “When I was 25, I wouldn’t like that goal. At 41, I’ll take anything right now.”

The veteran right wing did say that after his first day with the team, he is confident that he will be better and more comfortable as he gains more experience in the Bruins system and with his teammates.

“You guys have to understand, we had a morning skate,” he said. “This league is too good to just [show up and be comfortable]. This is not an All-Star [game in which] guys meet to just play one game. This is very tough. You’re playing against a team that’s fighting for the playoffs. It’s not easy to just go there. I don’t know these guys. They don’t know me, how I play. We had some chances, but I believe it’s just going to get better and better.”

Jaromir Jagr scored in his Bruins debut. (AP)

Jaromir Jagr got plenty of attention, but it was Tuukka Rask who stole the show Thursday at TD Garden in a 1-0 Bruins win over the Devils.

Jagr, who was acquired by the B’s on Tuesday, scored the only goal in his Bruins debut, but it was Rask’s 40-save shutout performance that kept the Bruins in it. The win improved the Bruins to 24-8-4 on the season with 52 points through 36 games.

Up next for the Bruins is a meeting with the Canadiens in Montreal. Here’s what went for the B’s in the Thursday night win.

WHAT WENT RIGHT FOR THE BRUINS

- Well, Jagr was able to match Lane MacDermid‘s pace (MacDermid scored in his Stars debut Wednesday).

The 41-year-old definitely looked like he was still getting a feel for his linemates, as his goal actually came as the result of the second pass he failed to connect on with Brad Marchand. Jagr, perhaps mistaking the speedy Marchand for a very speedy Marchand, sent the puck just out of the left wing’s reach. Marchand caught up to and sent a centering pass in front, with the puck going off Jagr’s skate and in.

- Speaking of Jagr, the Bruins obviously brought him in with the idea that he’d help the power play, but how about this? Jagr played the entire two minutes of the Bruins’ second-period power play. Jagr played on both units, first with Tyler Seguin, Marchand and Nathan Horton up front with Zdeno Chara at the point, and then with David Krejci, Rich Peverley and Milan Lucic in front with Dougie Hamilton at the point. The B’s didn’t score on the man advantage, though it was a better showing with a few quality chances.

- Rask was definitely the Bruins’ top performer, as he turned in an exceptional performance behind some rather shaky defense. Rask’s finest work came in the first period, when he made a kick save on Alexei Ponikarovsky and followed it by stuffing David Clarkson on the rebound with his right pad.

WHAT WENT WRONG FOR THE BRUINS

- It wasn’t quite the 47 shots allowed Tuesday against the Senators, but the Bruins allowed 40 shots on goal Thursday. They’ve now given up 87 shots on goal over the last two games, though the opponents have combined for just two goals, both of which were scored by the Senators.

- Seguin, who centered the second line in Patrice Bergeron‘s absence, looked like a wing trying to get comfortable playing a different position. It’s too soon to say he isn’t a fit for the job, but Seguin rightfully looked like he was adjusting after spending the entire season to this point at right wing.

Seguin went 0-for-3 on draws in first period and 2-for-5 in the second, which certainly was a far cry from the standard Bergeron has set by leading the league in faceoff efficiency. Claude Julien had Rich Peverley take draws in the defensive zone for Seguin early on, though Seguin was trusted with the responsibility in the second period and won a draw. Seguin finished the night 3-for-12 on faceoffs.

Chris Kelly

Chris Kelly skated for the fourth consecutive day on Thursday as he nears a return from a broken tibia suffered on March 11 against the Senators, but Thursday marked the first time he skated with his teammates.

Kelly participated fully in the Bruins’ morning skate, and though he will not play Thursday against the Devils, Claude Julien said that his return to the lineup is right around the corner.

“I think it’s just a matter of probably days now vs. a week that hopefully he’ll be back,” Julien said.

The coach added that Kelly will travel with the team to Montreal this weekend for Saturday’s game, though it’s too early to tell whether Kelly will actually play vs. the Habs.

Though Kelly is itching to get back on the ice (this is the longest he’s been out with an injury in his NHL career), he isn’t getting too far ahead of himself when it comes to jumping back in the lineup.

“It’s just about how I feel. If I feel good, I do a little bit more the next day,” he said. “If I don’t feel as good, maybe don’t push it as much. One step at a time. Today was my first day with the guys, and it was just a morning skate. Maybe if we practice tomorrow, I’ll get to skate a little longer with them and maybe do a little more.”

Morning skates aren’t a very physical affair, as the half hour is used for skating, line rushes, and other work such as special teams and face-offs. The next step in Kelly’s recovery would appear to be adding the physical aspect.

“I’m hoping not to get hit, to be honest,” he said with a laugh. “If they want to hit me, I guess that will be the next step.”

As for what he’s looking to get out of the final days before he gets back into games, Kelly said that it’s a combination of getting over the injury and getting his strength back.

“I think it’s a little bit of both. Conditioning is definitely a big part of it,” he said. “You don’t want to be fatigued and put yourself in a vulnerable position for other injuries. The fatigue aspect is definitely there. I need to work on that and just feel comfortable with the injury as well.”

When he does return, his line could look different. When he was injured, he was skating with Rich Peverley and Jordan Caron on the third line, but since then the Bruins have added Kaspars Daugavins and Jaromir Jagr, both of whom could eventually be in the third line mix. The B’s have also used Jay Pandolfo more on the third line (Pandolfo and Daugavins played on Peverley’s wings in Thursday’s morning skate).

Kelly’s line struggled mightily before he went down, and the third line has continued to underachieve. He doesn’t view his eventual return as a chance to bounce back with a new linemate or two, focusing instead on just playing when he can.

“I just want to be back. Whoever I play with will be great,” he said. “I know adding [Jagr] was great, and Daugavins as well. There are a few new faces, but whoever I play with will be great with me.”

Jaromir Jagr was all smiles Thursday. (DJ Bean/WEEI.com)

When the Bruins acquired Jaromir Jagr, it seemed a question of whether he would play on Boston’s first line or third line. As it turns out, Patrice Bergeron‘s concussion had a big say in the matter, as Jagr took part in his first morning skate with the Bruins on the second line, with Tyler Seguin at center.

The lines in morning skate were as follows:

Milan Lucic – David Krejci – Nathan Horton
Brad Marchand – Tyler Seguin – Jaromir Jagr
Jay Pandolfo – Rich Peverley – Kaspars Daugavins
Daniel Paille – Gregory Campbell – Shawn Thornton

Though Seguin was drafted as a center after playing mostly center in the OHL, he has primarily been a right wing in his time in the NHL. With Bergeron out, he’ll be given more responsibility initially, although the Bruins have lots of players capable of playing center on their roster (including the recently acquired Kaspars Daugavins), so if the trial period doesn’t go well, Claude Julien will have other options.

“We put him there because we think he can [handle] it,” Julien said of Seguin. “We’ll see. It’s a great opportunity for him. He’s played there most of his career and giving him that opportunity is something that I think he deserves. We’ll see how it goes, and if not, coaches will do what they do. They adjust.”

The morning skate also marked the return of Chris Kelly, whom the Bruins expect to return to the lineup shortly, though not Thursday. Tuukka Rask was the first goaltender off the ice, and will start vs. the Devils after Anton Khudobin played Boston’s last two games.

For more on the Bruins, visit weei.com/bruins.

Bruins center Chris Kelly skated for the third consecutive day when he took the ice Wednesday at Ristuccia Arena. Kelly has been out since suffering a broken tibia on March 11 against the Senators and was ruled out indefinitely at the time, though general manager Peter Chiarelli said Wednesday that the center is nearing a return.

“He’ll be back soon,” Chiarelli said of Kelly. “I know you’d like a little more detail, but I’m satisfied with his prospective return date and he’ll be playing for us soon.”

Chiarelli said that knowing Kelly would be back in the lineup in short order impacted his approach at the trade deadline. The Bruins, who lost Patrice Bergeron for the time being with a concussion, didn’t add any centers, though recently acquired winger Kaspars Daugavins can play in the middle.

For more on the Bruins, visit weei.com/bruins.

Bruins general manager Peter Chiarelli confirmed at his post-NHL trade deadline press conference that  center Patrice Bergeron suffered a concussion in Tuesday’s 3-2 win over Ottawa. SportsNet’s Nick Kypreos was the first to report the news on Wednesday.

“I talked to Patrice,” Chiarelli said. “Patrice suffered a concussion, described as moderate. I talked to him about [4 p.m. Wednesday]. He was in very good spirits. He was out walking today. He was annoyed at it. He was emotional Tuesday night. I don’t know when you’ll see him [playing] again. I don’t think you’ll see him [Thursday].”

Bergeron lunged at Ottawa forward Colin Greening in the Bruins’ zone in the second period Tuesday and hit his head on Greening’s elbow/forearm as the Ottawa forward was shooting. Bergeron left the game and did not return.

This is the fourth concussion suffered in Bergeron’s career, with the last one prior to Tuesday’s occurring in Game 4 of the Eastern Conference semifinals against the Flyers.

For more on the Bruins, visit weei.com/bruins.

Mike Petraglia contributed to this report.