Del Gaizo, 26, has played in 11 games for the Rocket this season, tallying four assists.
In 55 career NHL games — all with the Nashville Predators over the last two seasons — the left-shot blue-liner has put up two goals and 10 assists.
Fellow defenceman Jayden Struble missed practice on Sunday, potentially forcing Del Gaizo into his Canadiens debut Monday against the Columbus Blue Jackets with the team only carrying six players on the back-end prior to his call up.
Head coach Martin St. Louis is scheduled to speak later Monday.