SAN JOSE, Calif. — Marc-Andre Fleury made 28 saves in his fourth shutout of the playoffs and the expansion Vegas Golden Knights are headed to the Western Conference finals in their inaugural season after beating the San Jose Sharks 3-0 in Game 6 of their second-round series Sunday.

Jonathan Marchessault opened the scoring, Nate Schmidt added an insurance goal that was only detectable by replay and Cody Eakin sealed it with an empty-netter to help Vegas become just the third team in NHL history to win multiple series in its first season.

The Toronto Arenas won the Stanley Cup in the first postseason in league history in 1918, and St. Louis won two rounds to win the all-expansion West Division in 1968.

The Golden Knights relied on a crew of castoffs, led by a goalie who was part of three Stanley Cup-winning teams in Pittsburgh before headlining a new team. Fleury posted shutouts in Games 1 and 6 against the Sharks and was also spectacular in an overtime win in Game 3.

Next up for Fleury and Vegas will be Winnipeg or Nashville. Winnipeg leads that series 3-2 heading into Game 6 on Monday night.

The Sharks had numerous opportunities but were thwarted by a couple shots that hit the iron, some acrobatic saves from Fleury and other chances that trickled just wide. This marked the fourth straight postseason for the Sharks that ended with a loss on home ice.

The Golden Knights took control of this game with some good fortune in the second period. It started when usually reliable Marc-Edouard Vlasic turned the puck over in his own zone. Reilly Smith took control near the blue line and found Marchessault alone in front for a goal that trickled between the pads of goalie Martin Jones.

Vegas added to the lead after an icing by Brent Burns led to an offensive zone faceoff. David Perron beat Tierney on the draw and Schmidt took a shot that appeared to deflect off the post and out.

Play went on for 25 more seconds before the buzzer rang, with the situation room in Toronto calling for a video review. That quickly showed that the puck bounced off the post, off a piece of equipment inside the net and out.

Vegas then had a delayed celebration for the goal that made it 2-0.