Lehner made 26 saves in Monday's 5-2 loss to the Blues.
Vegas jumped out to an early 2-0 lead but Lehner couldn't make it stick, and the score had already flipped to 3-2 by the time the first period was over. It's the first time all season he's given up more than four goals, and while the 30-year-old netminder's 3.01 GAA looks shaky compared to last year's 2.29 mark, the Golden Knights are also allowing him to see a lot more rubber, as his .913 save percentage is unchanged.