The Montreal Canadiens are still believing after Josh Anderson's overtime goal helped them stave off a rare Stanley Cup Final series sweep with a 3-2 win over the Tampa Bay Lightning on Monday.

The Canadiens killed off a four-minute penalty to captain Shea Weber in overtime before Anderson's goal forced a Game 5 in Tampa, with the series at 3-1 in favour of the reigning NHL champions.

Montreal would have become the first side to suffer a clean sweep defeat in the Final series since 1998, when the Detroit Red Wings won 4-0 over the Washington Capitals.

Instead, the Canadiens are the first team to score in overtime to avoid a sweep in the Stanley Cup Final since the Bruins did it in 1946 against the Canadiens.

"We didn't want to end it tonight in front of our fans," Anderson said at the post-game news conference. "We expected to go to Tampa.

"I think everybody in that locker room packed their bags this afternoon. We just had that feeling that we were going to win tonight and give ourselves a chance to go there, take care of business, and come home in front of our fans. We're in a good position now."

If Montreal can win Game 5 in Tampa, they will have home rink advantage for Game 6 at the Bell Centre. Montreal are 4-0 when facing elimination this postseason.

Anderson said the Canadiens' grit to hang on during Weber's four-minute penalty showed they could overcome adversity.

"Our penalty kill has been outstanding all playoffs, so we came back to the room and we just believed in each other," Anderson said.

"We weren't down. It was all positive things in the room. We just had to execute. I thought we did a phenomenal job.

"Carey [Price] was a wall tonight. He gave us that chance to finish it in overtime. Everyone stuck together and did their jobs."

Interim Canadiens head coach Dominique Ducharme added: "We're proud of what we accomplished tonight, but we don't want to just avoid seeing the Lightning players holding the Stanley Cup.

"We have no intention of stopping now. We want to go to Tampa and come back to play another game here."

Game 5 is at Tampa's Amalie Arena on Wednesday.

Reigning NHL champions the Tampa Bay Lightning are focused on closing out their Stanley Cup Final series against the Montreal Canadiens in Monday's Game 4. 

The Lightning moved to the brink of a sweep with their 6-3 win in Montreal on Friday, but have been confined to their hotel rooms for most of their stay in Canada due to COVID-19 restrictions. 

Tampa Bay know they will be heading home after Monday's game regardless, either for Game 5 on Tuesday or as back-to-back Stanley Cup winners, but the Lightning have left no doubt which option they prefer. 

"I think for us, we've been in this position before," Lightning captain Steven Stamkos told reporters on Sunday. "We understand the magnitude of the game and we understand that we really are, as much as it's cliché to say, we're focussed on the start of next game.

"All those other things work themselves out. You never know what's going to happen in the course of a game or a series. We're focussed on our start next game. We want to come out extremely hard. We realise, both teams understand the situation that they're in. We're excited for the challenge."

In last season's Final, the Lightning had a chance to clinch at home in Game 5 as they held a 2-1 lead in the third period but saw the Dallas Stars tie the contest, then win it in double overtime on a goal by Corey Perry, who is now with the Canadiens. 

Tampa Bay would emerge victorious in Game 6 to take the Cup and would love nothing more than to do so again this year without all the drama. 

"It's a learning process to go through that," said Lightning head coach Jon Cooper. "By no means does that guarantee the results of what's going to happen in [Monday's] game, but I know our mindset's different going into these closeout games. ...

"It's about winning, it's not about where you win. And that's all we care about."

Sweeps are rare in the Stanley Cup Final, as the Detroit Red Wings were the last to do it in 1998 against the Washington Capitals, but history is on Tampa Bay's side. 

The only NHL team to blow a 3-0 lead in the Finals are the 1942 Toronto Maple Leafs, who ultimately fell to the Red Wings in seven. 

On the verge of a second straight Cup, the Lightning do not need to be reminded of the stakes. 

"You're in the Stanley Cup Final. You're playing against a great team over there," Stamkos said. "We've said it from whether it's the first round or the Stanley Cup Final, the fourth game is always the hardest to win. And that's the mentality we've had.

"Sometimes it takes four games. Sometimes seven. We expect that this group is going to be ready to play, and we expect that their group is going to be ready to play. No games are easy at this time of the year.

"I think for us, it's easy not to look past that. We know the difficulty of the Montreal Canadiens and what they bring to the table, and for us, it's another game."

The Tampa Bay Lightning moved to the brink of a second successive Stanley Cup triumph after a fast start helped them overcome the Montreal Canadiens in Game 3.

Jan Rutta and Victor Hedman both scored to give the Lightning an early 2-0 lead, in the process making it the first game in finals history where a team has got multiple goals from defensemen within the opening five minutes.

The Canadiens managed to halve the deficit but conceded twice more at the start of the second period, leaving them with a task they were unable to scale.

Tyler Johnson grabbed a brace as Tampa Bay ran out 6-3 winners, a result that leaves them on the cusp of glory in the best-of-seven series. However, Hedman insists there is still work to do, with Game 4 in Montreal on Monday.

"We're not there yet," Hedman, who also registered an assist, said. "We put ourselves in a good position obviously, but the fourth one is the hardest one to get. 

"We're going to do whatever it takes to win the next game. We've got more work to do, and we're not satisfied until we're done."

Montreal managed more shots on goal (35-30), though the disparity was not quite the same as in Game 2. The Canadiens had 43 attempts in the previous encounter compared to Tampa Bay's total of 23, yet still lost 3-1.

Phillip Danault, Nick Suzuki and Corey Perry were on target for Montreal in a losing cause on Friday, though they left themselves with too much to do after a disastrous start to proceedings.

"We put ourselves in a hole early, and it's tough to dig yourself out of a hole against a team like that, that plays pretty stingy," Canadiens captain Shea Weber said.

However, there is still hope for the Canadiens, who were down 3-1 to the Toronto Maple Leafs in the first round of the playoffs before rallying to keep their season alive.

Dominique Ducharme is in interim charge after Claude Julien was fired during the regular season, though the former had been absent for the first two games of the finals while self-isolating following a positive COVID-19 test result.

"We didn't quit the whole year, no matter what was being said," center Danault said. "When it was 3-1 Toronto we didn't quit. And I can guarantee that nobody on the team is going to quit now."

The Tampa Bay Lightning acknowledged they were not at their best in Game 2 of the Stanley Cup Finals, with one critical exception. 

Another brilliant showing from goaltender Andrei Vasilevskiy bought Tampa Bay enough space to scratch out a 3-1 victory over the Montreal Canadiens at Amalie Arena and take a 2-0 series lead. 

While the Canadiens dominated the flow of play and were the more aggressive team throughout, putting 43 shots on goal to Tampa Bay's 23, the Lightning had the decisive advantage. 

“Thankfully, there was one guy that had his level where it needed to be," Lightning veteran Ryan McDonagh said of Vasilevskiy.

Tampa Bay's netminder was beaten only on Nick Suzuki's power-play goal midway through the second period.

He has stopped 60 of Montreal's 62 shots through the first two games and has defeated the Canadiens 10 straight times, but said he found success by keeping his mind clear. 

"I'm trying not to think much during the games," Vasilevskiy said. "Whatever happens, win or lose, I'm just trying to go out there and play my best game, and now we’re up two games.

"It doesn’t matter -- up two games, down two games, it’s the same routine, same compete level.”

The 26-year-old Russian has been so good that it was jarring to see Suzuki's shot scoot past him and level the score after Anthony Cirelli had given Tampa Bay a 1-0 lead four minutes earlier. 

The moment that turned the game the Lightning's way, though, came in the closing seconds of that second period, when Barclay Goodrow stole the puck at center ice and delivered it to Blake Coleman, who managed to get a shot off with one arm while diving through the air. 

It got past Carey Price with 1.1 seconds remaining to send the Tampa crowd into a frenzy and give the Lightning a lead they would not relinquish. 

"It's definitely something you don't want to do, give up goals in the first or last minute of periods," said Canadiens captain Shea Weber. 

Despite that frustrating setback, Weber and his team will return to Montreal for Friday's Game 3 knowing they played better overall than in their 5-1 defeat to open the series. 

"I thought we played a pretty solid game all around, to be honest," Weber said. 

"We did make a couple mistakes that obviously hurt us. They're an opportunistic team that make you pay, but we probably deserved a little bit better tonight."

The Tampa Bay Lightning were served with a warning by head coach Jon Cooper after launching their Stanley Cup Finals mission with a 5-1 win over the Montreal Canadiens.

Cooper said his team still had a heap of work to do if they are to clinch back-to-back titles, and borrowed a string of baseball metaphors as he spoke of potential "curveballs" to come.

Two goals and an assist from Nikita Kucherov helped the Lightning to their comprehensive win in Game 1 at Amalie Arena.

Kucherov now has 30 points in the Stanley Cup playoffs for a second straight year, after seven goals and 23 assists. He has 64 points across this season and the previous campaign in the playoffs, a total only ever surpassed in successive playoff campaigns by Wayne Gretzky and Mario Lemieux.

The Russian became just the fifth player in NHL history to achieve multiple 30-point playoff campaigns, following Gretzky (six), Mark Messier (three), Jari Kurri (two) and Lemieux (two).

Cooper sounded a note of caution though, dialling down the euphoria and saying in his post-game news conference: "Consistency is the key.

"You have your plan, you stick with it and you consistently rock it, and if you do that we like our chances in games, but it doesn't guarantee results.

"For us we have found something that works with us. It doesn't mean you're going to win every night, but it's sticking with that process.

"You look no further than the last series we played in."

That was the semi-final against the New York Islanders that went all the way to the seventh game, the Lighting taking a 1-0 win in that decider.

"Teams in this league push you to the brink," Cooper said. "You have to hang in there and stick with it and this group has found a way to do that.

"You're not going to win a series in one night. There's curveballs and sliders and fastballs, and they're all thrown at you at different times, but if you're consistent with your game we trust that good things will happen.

"Tonight was just one, but the series is long from over. We're happy with tonight and now we're just going to improve on what we're doing and try and replicate it in Game 2."

That second game comes on Wednesday night, also in Tampa.

Canadiens assistant coach Luke Richardson, leading the team in the continuing absence of Dominique Ducharme who tested positive for COVID-19 earlier this month, expects a tighter battle next time.

Richardson said: "The rink was buzzing, and that's something that we will get over and we'll be a little bit more used to next game.

"I think maybe just to strike early for us will be key next game, to try and weather that storm and quiet the building a little bit and let us get a rhythm going."

Artturi Lehkonen's overtime goal against the Vegas Golden Knights propelled the Montreal Canadiens to their first NHL Stanley Cup Final since 1993 on Thursday.

The Canadiens ended their 28-year wait, punching their ticket to the NHL's showpiece thanks to Lehkonen's goal less than two minutes into OT in Game 6 of the semi-final series.

Just like Tyler Toffoli against the Winnipeg Jets in overtime, Lehkonen scored 99 seconds into OT to oust the Golden Knights. According to Stats Perform, the Canadiens are the first team in NHL history to score two overtime goals at the exact same time in a single postseason.

Not much was expected of the Canadiens in the NHL playoffs, having entered the postseason with the worst record but Montreal have won 11 of 13 games since sensationally overturning a 3-1 deficit against rivals the Toronto Maple Leafs in the first round.

The Canadiens – 24-time champions as they make their NHL-leading 35th Stanley Cup Final appearance – will face either defending champions the Tampa Bay Lightning or the New York Islanders.

"We wouldn't be here right now if we didn't believe," said Canadiens goalie Carey Price, who stopped 37 shots. "We've believed this whole time and obviously we're ecstatic and we have a lot of work left to do."

Lehkonen added: "Just trying to go high and hit the net. We're trying to keep it going one game at a time and not think things too much far ahead.

"I feel like we showed up today and it's a big win for us and we have four more to go."

Toronto Maple Leafs captain John Tavares has been discharged from hospital following a head injury suffered on Thursday that will see him out indefinitely.

Off balance following a collision, a prone Tavares was caught by the knee of passing Montreal Canadiens winger Corey Perry during the opening game of the playoff series.

Tavares initially rose to his knees before then slipping back down to the ice. He was taken from the rink on a stretcher, though did offer a thumbs-up upon his departure midway through the first period.

The Leafs announced on Friday that, following thorough checks, the 30-year-old was cleared to return home and rest. There is no timetable for his return to action, though.

"Toronto Maple Leafs captain John Tavares has been discharged from hospital this morning," read a statement released by the team via social media.

"He was thoroughly examined and assessed by the neurosurgical team at St Michael’s Hospital and the club's medical director.

"He was kept overnight for observation and is now resting at home under the care and supervision of team physicians.

"Tavares will be out indefinitely."

The Maple Leafs lost 2-1 at the start of the best-of-seven series in the first round of the Stanley Cup playoffs. Game two takes place in Toronto on Saturday.

Tavares had 19 goals and 31 assists in the regular season, helping his team finish top of the North Division. He has 819 points in his NHL career, having previously played for the New York Islanders.