Mitch Marner has been sidelined from the Leafs lineup since sustaining a high-ankle injury a few weeks ago against the Boston Bruins. Despite nearing a potential return and skating with the team recently, it seems he'll be out for a bit longer, prompting the Leafs to move him to the LTIR injured list.
As noted by Elliotte Friedman, this move is primarily a cap-related decision, given that Marner is now eligible to return later this week after missing sufficient time.
The Toronto Maple Leafs can leverage Marner's LTIR status to their advantage by utilizing the freed-up cap space to call up additional players. Considering their success in his absence, the Leafs may opt to keep Marner on LTIR until the playoffs, affording them the flexibility needed for roster adjustments without rushing his return and providing him with further rest.