The Golden Knights led 2-1.
"You want to score big goals, for sure," Neal said. "I think when you do the right things, if you're finishing your checks, you're playing well defensively, the goals will come. I've been in enough of those games, I feel like if you stick with it, you'll get your chance. It felt good to get one."
Seconds later, Marchessault lost a face-off in the right circle in the Kings zone. But forward Reilly Smith beat two defenders to the puck and centered it before anyone knew what happened. Center William Karlsson was alone in front and scored at 14:44.
Suddenly, the Golden Knights led 3-1.
"That's just a relentless work ethic," Eakin said. "We skated through a lot of checks."
The Kings' strengths are their physicality and defense. But the Golden Knights weathered them and used their strengths: speed, depth and offense. Each of their top three lines scored.
"We've played the same way all year," forward David Perron said. "We roll four lines, and we try to create situations that's going to end up into offensive chances and playing the right way all game.
"They really came out really hard. We don't expect anything different. They're a great team over there with a great goalie and some great players. We expect the exact same thing next game, and we're hoping to provide the same effort and the same composure to not get involved in it too much."
Kopitar scored on a deflection with 2:04 remaining, but the Golden Knights held on and set up a potential sweep in Game 4 here Tuesday (10:30 p.m. ET; NBCSN, TVAS, PRIME, ATTSN-RM).
Asked if this was the sweetest win of the season considering the circumstances, Schmidt smiled.
"I'll tell you after next game," Schmidt said.