McDonagh, who has not played since Feb. 7 because of a hand injury, has missed six games since he was traded to the Lightning from the New York Rangers on Feb. 26.
Tampa Bay is 9-0-1 in its past 10 games and lead the Atlantic Division by six points over the Boston Bruins having played three more games. Nikita Kucherov leads the NHL with 87 points (33 goals, 54 assists), and Andrei Vasilevskiy on Thursday became the first NHL goalie to win 40 games this season, 5-3 against the Rangers.
The Canadiens are on a three-game losing streak and 3-6-5 in their past 13 games. Montreal, which lost 5-0 to the Florida Panthers on Thursday, has the third-worst record in the Eastern Conference, 15 points behind the New Jersey Devils for the second wild card into the Stanley Cup Playoffs.
This is the final game between the teams this season. The Lightning won two of the first three.