Calgary Flames defenseman Juuso Valimaki will require surgery after tearing his ACL during offseason training and is out indefinitely, general manager Brad Treliving announced Monday.

"It's terrible news," Treliving said. "It's terrible news for Juuso, and certainly, unfortunate news for our club.

"He's a really good young player who we expected to take a big step and move forward this year. It's tough. I feel horrible for him. He's had a terrific summer in terms of preparing. He was really taking some big steps forward and was excited about making an impact on our team this year."

The Flames drafted Valimaki 16th overall in 2017 and he made his NHL debut last season. The 20-year-old went on to appear in 24 regular-season games, posting three points while averaging 15:23 of ice time per contest.

Valimaki also registered 14 points in 20 AHL games with the Stockton Heat during 2018-19.

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The Carolina Hurricanes have signed team president and general manager Don Waddell to a multi-year contract extension, the team announced Monday.

"Don's leadership and experience are invaluable to our organization and I'm happy we were able to reach an extension," owner Tom Dundon said. "Don and I have a great relationship and he is someone I trust. I'm excited to continue to build a championship team with Don."

Waddell joined the Hurricanes in 2014 and was named the team's general manager in 2018. Carolina snapped a 10-year playoff drought and advanced to the Eastern Conference Final in Waddell's first season as the GM. He was named one of the finalists for GM of the Year.

Drama intensified surrounding Waddell's place with the Hurricanes after he interviewed with the Minnesota Wild for their GM vacancy last week. He'd previously said in May that he'd be back with Carolina despite being without a contract.

Before his Hurricanes tenure, Waddell served as the general manager of the Atlanta Thrashers from 1998-2010 and as an assistant GM with the Detroit Red Wings during the 1997-98 season.

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Roberto Luongo will be the first player in Florida Panthers history to have his number retired, as the club announced his No. 1 will be hung from the rafters on March 7 versus the Montreal Canadiens.

More to come.

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Roberto Luongo will be the first player in Florida Panthers history to have his number retired, as the club announced his No. 1 will be hung from the rafters on March 7 versus the Montreal Canadiens.

More to come.

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Kevin Labanc says he accepted a surprisingly low contract for a couple of reasons.

The San Jose Sharks forward, who raised a few eyebrows when he re-signed and inked a one-year pact worth a reported $1 million last month following a 56-point campaign, said he wanted to avoid distractions during the season.

"I didn't want to wait," Labanc told NHL.com's Adam Kimelman at a charity event on Friday. "I wanted to sign the contract, get myself ready for the upcoming year and have nothing hanging over my shoulder."

Labanc added that signing the deal also made it easier for general manager Doug Wilson to navigate a difficult cap situation.

"I think I did (him) a big favor, and the Sharks organization, taking that deal," the winger said. "There's a lot more salary cap (space) for him to get another one or two players. It's awesome and I think it'll help our team be good Stanley Cup contenders this year and that's where we want to be, we want to hoist the Stanley Cup this year. It's a long season, and we're going to need every player we can get."

Longtime San Jose forward Joe Thornton remains unsigned, and the club holds about $4.7 million in cap space, according to CapFriendly.

In June, the Sharks locked in star defenseman Erik Karlsson to an eight-year contract reportedly worth $92 million, and then they signed promising young forward Timo Meier to a four-year, $24-million deal on July 1.

San Jose also lost captain Joe Pavelski, Gustav Nyquist, and Joonas Donskoi to other clubs in free agency. However, Labanc sees those departures as an opportunity for him to carve out a larger role.

"I'm going to go in there and work hard and look forward to my enhanced role on the team," he said. "There's going to be a lot of minutes. When guys leave it's an opportunity for guys like me to step up and prove I am that type of player who can play a top-six role."

In his third campaign with the Sharks, the 23-year-old established career highs with 17 goals and 39 assists while playing all 82 regular-season games in 2018-19. He added nine points in 20 playoff contests.

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John Tavares is optimistic he'll have Mitch Marner back by his side when the Toronto Maple Leafs open their 2019-20 season, even though the 22-year-old winger has seen his contract negotiations drag into mid-August.

"There's lots of restricted free agents unsigned still, a lot of guys in a similar position as him," Tavares told TSN. "There's still some time here, I think we all believe the right thing will happen and something will get worked out. I think that's what both sides obviously want, sometimes it takes a little bit longer than others. Mitch is obviously an important player for our team. Just the type of guy he is as well, you can really count on him."

Tavares and Marner formed one of the league's most dynamic duos in their first season together, with the former notching a career-high 47 goals and the latter finishing ninth in NHL scoring with 94 points.

Maple Leafs general manager Kyle Dubas said earlier in August that contract talks with Marner remain "status quo," while Toronto's leading scorer previously stated he's "probably not" attending training camp - which opens Sept. 17 - without a new deal.

"I think Mitch knows that I'm here for him whenever he needs it, but certainly I think you want to respect his situation and his process," Tavares said.

The Leafs are currently above the $81.5-million salary cap. They can build an offseason roster with a projected cap hit as rich as $92.05 million, however, before placing David Clarkson and Nathan Horton on long-term injured reserve to become cap compliant, according to CapFriendly.

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