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Maple Leafs place Dakota Mermis on injured reserve retroactive to December 8, call up Henry Thrun
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Photo credit: David Kirouac-Imagn Images
Arun Srinivasan
Dec 10, 2025, 11:00 ESTUpdated: Dec 10, 2025, 10:59 EST
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The Toronto Maple Leafs placed defenceman Dakota Mermis on injured reserve retroactive to December 8 with a lower-body injury. Henry Thrun has been called up from the AHL’s Toronto Marlies.
Mermis sustained the injury during a knee-on-knee with Tampa Bay Lightning forward Gage Goncalves during Monday’s game. The 31-year-old left the game immediately and did not return. Goncalves was assessed a five-minute major and a game misconduct, but did not receive any supplementary discipline from the NHL Department of Player Safety.
Maple Leafs forward Bobby McMann was issued a one-game suspension for high-sticking Lightning forward Oliver Bjorkstrand. McMann will serve the suspension during Thursday’s game against the San Jose Sharks.
Thrun is in line to make his season debut with the Maple Leafs. The 24-year-old left-shot defenceman was acquired in a trade with the San Jose Sharks, in exchange for Ryan Reaves on July 11. He has posted three goals and nine points in 19 games with the Marlies this season. Last year, Thrun recorded two goals and 12 points in 60 games with the Sharks.
“Playing in San Jose, I was very fortunate to get a chance to break in there and play a bunch of games and a lot of minutes,” Thrun said on July 14. At times, it’s a little challenging to be put in positions to move the puck and be involved, and obviously there’s a lot of defending which I was able to get some experience with that.
“I’m excited to be a two-way defenceman. I think I’m reliable in most situations on the ice. I think that’s one of my best assets, being versatile, being used on special teams, being used up and down throughout the lineup. There’s a lot that I feel I want to show and improve.”
It’s a tough loss for the Maple Leafs, who are already without Chris Tanev and Brandon Carlo due to injuries. Morgan Rielly also missed Wednesday’s practice due to illness, and the team could be down several regulars entering Thursday’s contest.

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