Head coach Mike Babcock announced the 28-year-old would be a game-time decision.
Gardiner hasn’t played since Feb. 25 due to a back injury. In 60 games this season, he has two goals and 29 points.
In other Maple Leafs news, winger Andreas Johnsson is also expected to return to the lineup after missing Tuesday’s game with an illness. Johnsson has 20 goals and 42 points in 71 games this season.