B's lose Tomas Kaberle, get Joe Corvo

On the day defenseman Tomas Kaberle got a three-year deal from the Carolina Hurricanes, the Boston Bruins acquired defenseman Joe Corvo from those same Hurricanes on Tuesday in exchange for a fourth-round pick in the 2012 draft.

Kaberle's deal averages $4.25 million per season, according to the Canes. Corvo stands to make $2.5 million this season (with a cap hit of $2.25 million) in the final year of a two-year deal.

The 33-year-old Kaberle was dealt from Toronto to Boston at the trading deadline and helped the Bruins win the Stanley Cup. His brother, Frantisek, was a member of the Hurricanes' 2006 Cup-winning team.

Tomas Kaberle had a combined four goals and 43 assists with the Maple Leafs and Bruins during the regular season, and had another 11 assists during the playoffs.

Carolina general manager Jim Rutherford calls Kaberle "one of the top puck-moving defensemen in the NHL."

He joins Joni Pitkanen as Carolina defensemen making at least $4 million this season.

The 34-year-old Corvo appeared in all 82 games for Carolina last season, registering 40 points (11 goals, 29 assists).

In eight NHL seasons, Corvo has 79 goals and 179 assists. He has played for the Hurricanes, Washington Capitals, Ottawa Senators and Los Angeles Kings.

In a conference call, Corvo expressed both surprise and delight at the opportunity to come to Boston.

"This came as a real surprise to me, and a very pleasant surprise," Corvo said. "I'm very happy to be with a team coming off such a successful season and not making many changes at all. At this point in my career, I'm just excited for the opportunity to win and the chance to win, and couldn't be happier."

Bruins general manager Peter Chiarelli spoke highly of the veteran defenseman's shooting ability, sturdy frame and ability to log big minutes every night. This season, Corvo averaged nearly 25 minutes of ice time.

"Joe is a player that has a lot of experience in the league," Chiarelli said in a conference call. "He's a strong player, he's a very good skater, he's a very good shooter who can log a lot of minutes. He can play the power play, he's strong on the power play, and he has extensive postseason experience.

"He's someone we've talked about the last little bit as we've progressed on some of these free agent signings. You go past the free agency date, the first few days, and you look at possible trades if you're not satisfied with what you've accomplished in free agency. Joe became available when we couldn't reach terms with Tomas Kaberle, and we felt strong about Joe as a player."

Chiarelli said the team talked with Kaberle's agent but they couldn't reach an agreement.

"We seized the opportunity," Chiarelli said. "We do wish Tomas well. He provided us with something we greatly needed in the Stanley Cup drive and he's got a good contract with a good team now."

It's unclear -- and perhaps, given the amount of shifts given the Zdeno Chara-Dennis Seidenberg line, unlikely -- that Corvo will be called upon to log nearly 25 minutes a night, but Chiarelli was not yet clear on where exactly he will fit into the pairings. The right-shooting Corvo can also play on the left side, as he did in his final few seasons in Los Angelese nearly a decade ago.

As for the power play, Chiarelli is optimistic about the abilities Corvo can bring.

"He's a tremendous skater," Chiarelli said. "Very quick, good at retrieving pucks and skating up through the neutral zone and making a good seam pass.

"He has a terrific shot. I've seen him score often on one-timers ... stickhandling, shooting, he's very dangerous that way, he gives us another hard shot right side. To me, with respect to the power play, (I like) his skating and passing. Obviously I like his shot, but his skating and passing will help with the entries and be an asset to the power play."

A 6-foot-1, 210-pound defenseman, Corvo was originally drafted by the Kings in the fourth round of the 1997 draft.

Also Tuesday, Chiarelli said forward Milan Lucic had surgery to fix the cartilage in his nose, and backup goalie Tuukka Rask had arthroscopic surgery on the meniscus in his knee. Neither is expected to require a long recovery.

The Bruins also signed forwards Jamie Tardif and Josh Hennessy. Hennessy, a native of Brockton, Mass., who played 20 games for Ottawa from 2006-10, played for the Swiss club HC Lugano last season. Tardif spent the last two years in the AHL.

Information from ESPNBoston.com's Brendan Hall and The Associated Press was used in this report.