Gauthier (upper body) will not be in the lineup versus Calgary on Tuesday, Eric Francis of Sportsnet reports.
Gauthier continues to be classified as day-to-day, so it's possible he'll be ready to face the Bruins on Friday. With the 22-year-old winger on the shelf, Roger McQueen will make his NHL debut against the Flames. For his part, Gauthier is currently mired in a three-game pointless streak and will no doubt be eager to score whenever he's cleared to return.