Think Max Scherzer is nervous about the Dodgers’ Wild Card game?

Think again … ’cause the L.A. starter cruised to the stadium Wednesday in flip-flops and shorts — showin’ he’s absolutely CHILLIN’ before the win-or-go-home matchup with the Cardinals!!

The Dodgers posted a glimpse of Scherzer’s pregame ‘fit just hours before he’s set to take the mound in L.A.’s biggest game of the season … revealing the pitcher ditched a suit and tie and instead rocked his comfiest attire to the ballpark.

Of course, pregame looks don’t always offer accurate glimpses into the future … but it’s clear as day, Scherzer is feelin’ gooooood before his big start.

That, obviously, ain’t the best news for St. Louis fans … because Scherzer has already been lights out since being traded to the Dodgers from the Nationals over the summer.

In 11 starts for L.A., Mad Max has posted a 7-0 record with a 1.98 ERA and 89 strikeouts in 68.1 innings pitched.

Game starts in just a couple hours … good luck dealing with that slider tonight, Cardinals.