San Jose Sharks defenseman Erik Karlsson has been handed a two-game suspension for an illegal hit to the head of Los Angeles Kings forward Austin Wagner on Saturday night, the NHL's Department of Player Safety announced.

Here's the collision that landed Karlsson his first career suspension:

The hit knocked Wagner out of the game - which the Kings won 3-2 in overtime - but went uncalled by officials.

The suspension was handed out quickly as the Sharks take on the Arizona Coyotes on Sunday before the NHL's Christmas break.

Karlsson recorded two assists in Saturday's contest to reach 26 points in 37 games with San Jose.

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Former Detroit Red Wings forward Johan Franzen was forced to retire from the NHL three years ago due to concussions and has since been diagnosed with post-traumatic stress disorder, as he battles with depression, severe anxiety, and panic attacks.

"Sometimes my whole world falls apart and I can't see the light in the end of the tunnel," Franzen told Gunnar Nordstrom of SportExpressen. "All I can do then is to sleep and lay in my bed. I take antidepressants and try to feel better again. But it quickly gets dark. Very dark."

The 39-year-old's last NHL contest was Oct. 10, 2015, which was the second game of an attempted comeback from a concussion he sustained in January of the same year.

Franzen has continued to feel the effects of that head trauma in the years since.

"Most of the time I think I am moving in the right direction, but when I have the down periods there is nothing positive. I almost give up then, and it is even worse because you think you have been better for a while," he said.

"It's embarrassing. I can speak to one person and the next day I've forgotten his or her name."

His wife, Cissi, wrote a blog in May about her husband's struggles, describing living with him as "not easy" and "like a rollercoaster."

Franzen believes moving back to his native Sweden from Detroit could help ease some of his pain

"I used to go to the mountains. As soon as I see a mountain I feel better."

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The Toronto Maple Leafs have recalled forward Trevor Moore from the AHL's Toronto Marlies on an emergency basis, the team announced.

Moore will fill a hole in the Leafs' lineup left by Tyler Ennis, who suffered a broken ankle during Saturday night's win over the New York Rangers.

The 23-year-old is expected to make his NHL debut when the Leafs take on the Detroit Red Wings Sunday night, according to The Athletic's Jonas Siegel.

Moore signed with Toronto in 2016 as an undrafted free agent out of the University of Denver. He's recorded 17 goals and seven helpers in 27 games with the Marlies this season, and was a part of their Calder Cup-winning team last year.

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After a scary incident Saturday night, Buffalo Sabres broadcaster Rick Jeanneret is doing well and resting at Buffalo General Medical Center, the team announced in a statement.

"Sabres broadcaster Rick Jeanneret, who was hospitalized at Buffalo General Medical Center last night, is resting and doing well," the statement read. "On behalf of Rick and his family, we'd like to thank everyone for their thoughts and prayers. Rick looks forward to being back in the booth after the break."

Jeanneret was taken away from KeyBank Center in a stretcher during the third period of Saturday night's game against the Anaheim Ducks. He was feeling light-headed and stopped talking during the broadcast.

The 76-year-old also texted The Athletic's John Vogl Sunday morning to update his status.

Jeanneret has been with the Sabres since 1971 and was honored by the Hockey Hall of Fame with the Foster Hewitt Award for outstanding broadcasting in 2012.

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The Minnesota Wild will be without Matt Dumba for "a significant time" as the defenseman is expected to have surgery for an upper-body injury next week, general manager Paul Fenton announced Friday.

Dumba left Saturday's game versus the Calgary Flames after playing only five minutes. He got into a fight with Flames forward Matthew Tkachuk forty seconds into the contest.

Fenton could not confirm the injury occurred during the fight.

"When the player says, 'I don't know when it happened,' that's what I'm going on. He does not know when it happened," Fenton said, according to Sarah McLellan of the Star Tribune.

Fenton added Dumba "is in a state of shock," according to The Athletic's Michael Russo. "He's visibly upset."

A timeline for Dumba's return is unclear but now that surgery is likely his season could be in jeopardy, sources told Russo.

The 24-year-old blue-liner has suited up for 32 games with the Wild this season, notching 12 goals and 10 assists. He missed seven games in the past three years prior to this injury.

The Wild sit 11th in the Western Conference with a 17-15-2 record.

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Edmonton Oilers head coach Ken Hitchcock hopes to get more out of Jesse Puljujarvi and believes slotting him alongside Connor McDavid on the team's top line may be the solution.

"I feel like his next step is to get his tempo higher," Hitchcock said after moving Puljujarvi to the top unit during the Thursday's practice. "So why not play him with the fastest player on the team, and maybe even in the league and see if he can keep up."

Ryan Nugent-Hopkins was the other member of the Oilers' first line after Hitchcock's changes.

Puljujarvi, 20, has played in 24 games with Edmonton this season, recording three goals and an assist. He also suited up for four games with the Bakersfield Condors of the AHL.

The 2016 fourth overall pick has yet to live up to the high expectations of being selected shortly after Auston Matthews and fellow Finn Patrik Laine. He's recorded 32 points in 117 career games.

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Ottawa Senators forward Matt Duchene will make his return Friday against the New Jersey Devils, the team announced.

Duchene missed the Senators' last six games after leaving their Dec. 6 tilt against the Montreal Canadiens with a groin injury.

At the time of his injury, he was leading the Sens with 34 points in 29 games. He is still on pace to pass his career high of 70 points from the 2012-13 season with the Colorado Avalanche.

In Duchene's absence, the Senators went 3-2-1 and currently sit 11th in the Eastern Conference with 34 points.

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Former Ottawa Senators assistant general manager Randy Lee pleaded guilty to a harassment charge stemming from an incident in May involving a hotel shuttle driver, the Canadian Press reported.

Lee entered the plea Thursday before his nonjury trial was set to begin.

The 57-year-old had been charged with making lewd comments and rubbing the shoulders of a 19-year-old male driver at the NHL's pre-draft scouting combine in Buffalo. He originally pleaded not guilty.

For his guilty plea, Lee was sentenced to time already served - one night in jail - and paid a surcharge of $120.

He was suspended by the Senators in June and later resigned in August after spending 23 years with the organization.

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Toronto Maple Leafs head coach Mike Babcock said Thursday that chasing down the Tampa Bay Lightning, who lead the NHL with a 26-7-2 record, will be extremely difficult.

"It looks to me like Tampa's better than us," Babcock told Sportsnet's Chris Johnston. "It looks to me like they're better than everybody."

With 54 points, the Lightning lead every other team by at least eight. And they've been even hotter in recent weeks, going 9-0-1 across their last 10 games, including a 4-1 win over second-place Toronto.

"I'm not saying they're deeper, I'm not saying they're more talented," Babcock added of the Lightning, according to Joshua Clipperton of the Canadian Press. "But their maturity level to play every night and find a way to win seems to be there."

As Babcock alluded to, Tampa Bay's will to win has been on display this season, as the team went 12-2 while star netminder Andrei Vasilevskiy was sidelined with a broken foot.

Babcock and the Leafs will have three more cracks at the Lightning in 2018-19 - two of which are at home - starting with a matchup on Jan. 17.

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Edmonton Oilers forward Jujhar Khaira made an early exit from Tuesday night's game against the St. Louis Blues.

Khaira received a five-minute major for cross-checking and a match penalty after hitting defenseman Vince Dunn in the head midway through the third period.

Here is the incident that led to the ejection:

Dunn was also handed a minor penalty for cross-checking.

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