Montreal Canadiens defenceman Mike Matheson was not available for Tuesday's game against the Utah Hockey Club due to a lower-body injury.
The Canadiens announced his injury half an hour before puck drop. Jayden Struble took his place in the lineup as Montreal (7-11-2) faced Utah (8-10-3) for the first time.
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Matheson participated in the morning skate but missed practice on Monday.
The 30-year-old from nearby Pointe-Claire, Que., leads all Montreal blueliners with 13 points (one goal, 12 assists) in 20 games as the lone defenceman on the team's top power-play unit.
Struble has one goal and three assists in 15 games this season.
