Simmonds will not be flying with the Leafs to Calgary today as he is spending time with his family. As of this moment, it is unclear whether or not he will play in tomorrow's game against the Flames. If Simmonds doesn't not travel to Calgary for tomorrow nights game,
Travis Dermott could slot into the lineup and the Leafs could go with 11 forwards and 7 defensemen, as we saw at points last season.