Montembeault will protect the home goal versus the Senators on Saturday, per TSN 1200 Ottawa.
Montembeault earned a 48-save shutout in his season debut Wednesday versus the Maple Leafs. He'll look to keep things going against another Atlantic Division rival in his second start of the year. If the Canadiens struggle offensively again this season, Montembeault must be excellent to keep the team competitive.