For the second game in a row, Lehner, who did not play the first semifinal when Vegas lost 0-1, managed to keep a clean sheet.
In total, Lehner held tight in the Vegas cage in three of the seven quarterfinals against Vancouver.
The first period was goalless, but in the second Vegas managed to get a 3-0 lead - the 2-0 goal was scored by William Karlsson - a position that lasted the match time.
Robin Lehner saved 24 pucks.
- They played a damn match, and that made my job a little easier, says Lehner about his teammates.
Anton Chudobin made as many saves for Dallas, but he also conceded three pucks.
Chudobin was replaced in the third period by Jake Oettinger who in his NHL debut made five saves.
The score is now 1-1 in the semifinal series, which is decided in the best of seven matches.
The next match will be played on Friday night Swedish time.