Calgary Flames defenseman Rasmus Andersson could be in line for supplemental discipline after headbutting Edmonton Oilers forward Kailer Yamamoto on Saturday night.

In the season's first edition of the "Battle of Alberta," Andersson went after Yamamoto late in the first period, appearing to take exception to the winger encroaching on Flames goaltender Jacob Markstrom.

The officials handed Andersson minor penalties for roughing and elbowing.

Oilers superstar Connor McDavid scored on the ensuing power play.

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Tampa Bay Lightning star Nikita Kucherov was forced to leave midway through the third period of Saturday's game against the Washington Capitals with an apparent lower-body injury.

Kucherov made awkward contact with Capitals forward Garnet Hathaway and appeared to be in pain.

After the game, Bolts captain Steven Stamkos expressed his concern about the potential injury, saying it "didn't look good," according to The Athletic's Joe Smith.

"We're praying he's OK," Stamkos added.

Tampa Bay head coach John Cooper didn't offer much of an update, but he said there was no need to hit the "panic button" yet.

"I have no way to answer what's going on with him. He'll be evaluated when we get back. He's a tough kid, so hopefully this isn't too bad. But again it's way too early to tell what's wrong," Cooper said, per NHL.com's Tom Gulitti.

The Lightning won the contest 2-1 thanks to Stamkos' heroics in overtime.

Kucherov has four points in three games so far this season.

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Toronto Maple Leafs head coach Sheldon Keefe announced Saturday that goaltender Petr Mrazek is expected to miss two weeks with a groin injury, according to TSN's Mark Masters.

Mrazek left Thursday's clash versus the Ottawa Senators - his debut with Toronto - after two periods. He appeared to sustain the injury in the dying seconds of the frame.

Jack Campbell will remain the starter with Mrazek out, while Michael Hutchinson has been called up to serve as backup.

Mrazek signed a three-year contract with Toronto this past offseason.

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If the Buffalo Sabres commit to trading captain Jack Eichel, they want his contract fully off the books.

"One of the biggest hurdles right now to getting a Jack Eichel trade done is that the Sabres ... do not want to retain any salary," Sportsnet's Elliotte Friedman reported Saturday on Hockey Night in Canada's "32 Thoughts."

"Now, they are willing to talk about taking contracts back to facilitate a deal, but it's still difficult with so many teams close to the cap and also Eichel still having four more years at $10 million a season left on his salary."

A potential Eichel trade has been in limbo since the outset of this past offseason. The team and player remain at odds over the best way to fix Eichel's ailing neck. Eichel wants an artificial disc replacement - which has never been done on an NHL player - while the Sabres prefer fusion surgery, which is more common but has a longer recovery time.

Eichel is currently on long-term injured reserve. Since being drafted second overall by Buffalo in 2015, the soon-to-be 25-year-old's notched 355 points in 375 games.

The Sabres have begun their 2021-22 campaign with consecutive wins.

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Vegas Golden Knights sniper Max Pacioretty will miss significant time with a lower-body injury, according to The Athletic's Jesse Granger.

The ailment, which Pacioretty suffered in Thursday's game against the Los Angeles Kings, is expected to keep him out for approximately six weeks, Sportsnet's Elliotte Friedman reports.

Pacioretty is the latest Golden Knight to go down, as the team is dealing with a litany of injuries up front.

Pacioretty led the Golden Knights with 24 goals last season and finished second with 51 points in 48 games.

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It's less than a week into the new season, and the Toronto Maple Leafs have already found themselves in a battle with the salary cap.

The Leafs are signing University of Toronto goaltender Alex Bishop to a one-day amateur tryout to serve as Jack Campbell's backup Saturday night against the Ottawa Senators, according to Sportsnet's Elliotte Friedman.

Toronto, which made the move after netminder Petr Mrazek suffered a groin injury Thursday in Ottawa, was only carrying one extra skater due to its cap crunch. However, that extra skater, Timothy Liljegren, is needed to play on Saturday due to an illness to defenseman Justin Holl, head coach Sheldon Keefe announced, per TSN's Mark Masters.

Mrazek's injury doesn't appear to be a long-term issue, Keefe added. So neither Mrazek, Holl, nor Auston Matthews - who was already ruled out for the first week of the season - are on long-term injured reserve. Thus, all three players still count against the cap even though they won't be active Saturday night.

Once the Leafs play one game short an NHL player - as they will Saturday - they can recall third goalie Michael Hutchinson from the AHL on an emergency basis for their next tilt Monday, even if their injury and cap situation remains the same, per TSN's Chris Johnston.

Bishop, a native of Richmond Hill, Ontario, posted a .922 save percentage in 24 games with the Varsity Blues in 2019-20. Prior to attending UofT, the 24-year-old played three seasons in the QMJHL and a year split between the OJHL and MHL.

Here's the Leafs' full projected lineup Saturday:

Liljegren, a first-round pick in 2017, has skated in 13 career NHL games, recording one assist. He's projected to take Holl's spot alongside Jake Muzzin, with whom Liljegren was paired during the team's first week of training camp.

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Anaheim Ducks head coach Dallas Eakins isn't too happy with the incident that sidelined No. 1 netminder John Gibson ahead of his team's second game of the season Friday.

Gibson took a hit from Winnipeg Jets forward Andrew Copp in the third period of the Ducks' season-opening victory Wednesday. Referees called Copp for goalie interference on the play. Gibson stayed in the contest, but Anaheim ruled the goalie out for its clash against the Minnesota Wild with a lower-body injury.

"That's just a dirty play," Eakins said Friday, according to the Orange County Register's Elliott Teaford. "That's what it is. That guy (Copp) knows exactly what he's doing. He's taking the net. He's going to take the goalie. Our goalie is playing quite well. That's what he's going to do. He (Copp) gets a two-minute penalty, and we lose our goalie."

The 28-year-old made 33 saves en route to the 4-1 win Wednesday and shut out the Jets in the final frame after his run-in with Copp.

It's unknown how long Gibson will be out. Anthony Stolarz took his place in the crease Friday.

The Ducks will see the Jets again in Winnipeg on Oct. 21.

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