Michael Amadio also scored, and Logan Thompson made 32 saves for Vegas (41-25-8), which is 5-0-1 in its past six.
The Golden Knights are third in the Pacific Division, four points behind the Edmonton Oilers and three ahead of the Los Angeles Kings.
“You’re going into the third and at the end of a road trip, so you’re going to have to dig down a little. We did. We did,” Cassidy said. “We’re a winning team for a reason. So, I think limiting to one goal, obviously you like to keep the scoresheet clean, but I think we felt pretty good about that. We’re still in the game, and let’s get back to our game and eventually we found a way to score a goal.”
Kaprizov scored, and Gustavsson made 29 saves for Minnesota (35-29-9), which is 2-2-1 in its past five games and trails the Los Angeles Kings by seven points for the second wild card into the Stanley Cup Playoffs from the Western Conference.
“Where we’re at in the standings and where it goes, you're trying to put your team in the best position to win the hockey game,” Minnesota coach John Hynes said. “And in our opinion, putting Kaprizov, (Mats) Zuccarello, (Joel Eriksson) Ek and Boldy against three players on the ice gives us the best chance to win a game.
“When you look at our situation, we have to win games and get two points, and we have to get help from other teams. So, the decision was made to give the team the best chance to win the hockey game.”