On Tuesday prior to puck drop, head coach Claude Julien confirmed the 22-year-old is not quite game ready just yet.
The Habs forward has been sidelined with a lower body injury since November 29, missing Montreal's two most recent games against Detroit.
He was scheduled to hit the ice on Tuesday morning in Brossard, but was sent home due to a virus.
In 25 games this season, Drouin has five goals and is tied with a team-leading 12 assists for 17 points, but the Habs will nevertheless look to extend their win streak to six without the Sainte-Agathe-des-Monts, QC native against St. Louis.
Julien also confirmed pregame that he'll stick with Saturday's winning lineup on Tuesday, with no changes slated opposite the Blues.
