 In the post-season, Stewart had four goals and six points in five games, as the Frontenacs lost to the Oshawa Generals in the opening round of the playoffs.Stewart made his professional debut with the Albany River Rats of the American Hockey League (AHL) at the end of the 2006–07 season.He played his first game with the team on April 4, 2007, getting no points in a 3-2 loss to the Springfield Falcons.