LAS VEGAS — Welcome to Impossible.

Those words have been projected onto the ice in big, bold letters at T-Mobile Arena before each game during the Stanley Cup Playoffs. Well, the Vegas Golden Knights are turning impossible into possible.

The stunningly successful expansion squad is headed to the Stanley Cup Final after beating the Winnipeg Jets 2-1 on Sunday to win the Western Conference final series in five games.

"I remember eight months ago, when we won against Dallas (in the season opener), we had that unbelievable feeling," Vegas centre Pierre-Edouard Bellemare said. "Doesn't feel like we're satisfied. It's a good feeling when you know the guys are excited for the next one."

The Golden Knights are the third franchise in NHL history to clinch a berth in the Stanley Cup Final in its inaugural season, joining the Toronto Arenas in 1918 in the league's early days, and St. Louis Blues in 1968, when all six expansion teams were in the same division and one of them had to make the final round.

Vegas will play either Tampa Bay or Washington on hockey's biggest stage. The Lightning lead the Eastern Conference final 3-2, but the Capitals host Game 6 on Monday night.

"Either way, we're not going to be favourites," said Jonathan Marchessault, who leads Vegas with 18 points in the post-season. "That's been the case all year. Tampa has been the best team all year. Washington, (they're) playing great hockey right now. Either way, we're not going to be favourites, and that's fine with us. We went all year like that and we're going to keep going."

Hence, "The Golden Misfits" tag.

Nobody could have scripted Vegas, a 500-1 long shot at the start of the season, making the playoffs — let alone earning a shot at Lord Stanley's Cup.

But the Golden Knights, who finished fifth in the league during the regular season, just knocked off the No. 2 team in the regular season in Winnipeg, which in the conference semifinals knocked off the No. 1 team in the regular season, Nashville.

Vegas clinched all three of its Western Conference series on the road, becoming the seventh team in NHL history to accomplish such a feat.

"Everybody on this team has something to prove," said Winnipeg native Ryan Reaves, who scored the winning goal Sunday in his hometown. "We call ourselves 'The Golden Misfits' for a reason. We're doing a good job of proving everybody wrong."

Just as they have all season, they are living in the moment.

Vegas, which had just two players under contract at this time last year, heads into the final round with a 12-3 playoff record after outscoring its Western Conference opponents 42-27.

It's a credit to coach Gerard Gallant's philosophy of having a well-conditioned, confident group of forwards who work well together, focus on short effective shifts, and exude confidence on the ice - all while, as he reiterates it daily, playing 200 feet of hockey.

And while the Golden Knights haven't necessarily been a high-scoring threat, scoring just three or fewer goals in 12 of their 15 playoff games, their defencemen have played exceptional to this point. Vegas has allowed the least amount of goals in the playoffs, among teams that have played 10 games. It was a stifling and disruptive defence that helped propel the Golden Knights past the Jets on Sunday, with their sixth win in eight road games during the post-season.

"Everybody's stepping up at different times during the season," said goalie Marc-Andre Fleury, who has 12 wins, four shutouts, a .947 save percentage and 1.68 goals against average. "That's a big reason why we've been playing consistently."

The key cog in Vegas' engine has been Fleury, whose remarkable play has translated into a career-best post-season. He has allowed two or fewer goals in 10 of 15 playoff games, and is heading to the Stanley Cup final for a third consecutive year. And whether he admits it or not, the 14-year veteran still bears the scars of being left exposed by Pittsburgh last summer after spending the first 13 years of his career with the Penguins.

Gallant, who remained coy about his team's aspirations during the regular season, made it clear the Golden Knights haven't reached their goal.

"It's been an awesome ride so far," said Gallant, who some might also consider a "misfit" after Florida fired him following a road game at Carolina last season, then left him and his luggage on the curb outside PNC Arena. "We're going to the Stanley Cup Final, but again, this isn't what we want. We want to win.

"It's great to win tonight and it's great to be the (conference) champions," Gallant added, "but that's not what we're here for."

Even as impossible as that all seemed just a few months ago.

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W.G. Ramirez, The Associated Press