Leblanc spent three seasons with the Canadiens, mainly playing for their American Hockey League (AHL) affiliate, before being traded in 2014 to the Anaheim Ducks, who kept him in the AHL. In 2015, Leblanc moved to Europe, joining HC Slovan Bratislava of the Kontinental Hockey League (KHL), though he played only seven games for them before being released. After appearing in four games for Lausanne HC of the Swiss National League A, he retired from hockey. Internationally, Leblanc played in the 2008 Ivan Hlinka Memorial Tournament, where Canada won the gold medal, and in the 2011 World Junior Ice Hockey Championships, where he helped Canada win a silver medal. Leblanc was considered a draft bust, having failed to reach his potential and retiring from hockey at an early age.