"I thought we had a really good game," said Lehner, whose shutout was his second of the series; he made 26 saves in a 5-0 win in Game 1 on Aug. 23. "They had a really good first, but in the second and third periods, the guys really helped me out. It's a fun team to play against ... they're easy to get up for."
Alex Tuch, Zach Whitecloud and Mark Stone scored for the Golden Knights, the No. 1 seed in the West who are 7-0-0 when scoring first this postseason.
Jacob Markstrom made 31 saves for the Canucks, the No. 5 seed.
"I liked our start to the game, and we were unlucky to be down 2-0," Canucks coach Travis Green said. "That happens in playoff hockey. With our team, sometimes when we get down, we tend to overpass the puck a little bit. We had a few too many east-west plays in the offensive zone, especially in the second period.
"I really liked our first period. ... We skated well, drew some penalties. Give Lehner] credit. He made some really nice saves. I think we could've easily been up after the first period."
***[WATCH: [All Golden Knights vs. Canucks Game 3 highlights]*
Teams that win Game 3 after a Stanley Cup Playoff series is tied 1-1 are 218-107 (67.1 percent) winning a best-of-7 series, including 3-1 in the first round.
Game 4 will be in Edmonton, the West hub city, on Sunday (10:30 p.m. ET; NBCSN, CBC, SN, TVAS).
Tuch gave Vegas a 1-0 lead at 4:05 of the first period, skating in on a breakaway after receiving a lofted pass from Nicolas Roy and scoring glove side from the left circle. Tuch, who scored eight goals in 42 regular-season games, has seven in 11 postseason games.
"I'm not trying to think about the regular season and focus on the playoffs," Tuch said. "We had a break to get healthy and I tried to get in the best shape possible. I think I was able to do so with the help of our coaching staff and my teammates."
Tuch has scored in four straight postseason games to tie Jonathan Marchessault (2019) for the longest streak in Vegas history.
"Alex is a guy we knew we were going to need (in the postseason)," Golden Knights coach Peter DeBoer said. "He was disappointed with his regular season, and we talked about the fact if you have a great playoff, no one will remember the regular season, and he's taken that and run with it.
"He's been fantastic, and not just sticking the puck in the net, but his speed is dangerous every time he's on the ice."