The Maple Leafs and Flames skated at the Scotiabank Saddledome in Calgary on Tuesday.

---

Mitch Marner missed the morning skate and is being listed as a game-time decision for Tuesday's showdown with the Flames. It's unclear exactly what is plaguing the Maple Leafs winger, who scored the game-winning goal on Saturday in Edmonton and was on the ice for the final shift.

"Something happened in the game, I guess," coach Craig Berube said. "Just not feeling right in certain areas, so we're trying to work on it. Trying to get him ready."

Marner also missed Monday's practice. Even teammates appear to be caught off guard by the development.

"I had no clue something was going on," said winger William Nylander.

"I'm not going to get into it," said centre John Tavares. "We're, what, early February and you get to this point of the year, 50-plus games, there's a lot going on in terms of the grind and what you go through and the aches and the pains and all that."

Marner leads the team with 70 points this season. He is one of four players to suit up in every game.

"He's been our best player all year," said defenceman Chris Tanev. "He does everything, right, so it's not just going to be one guy who's going to be able to do that. We're going to need a group of guys to step up and pick up the slack."

Marner plays more minutes than any other Leaf. He's averaging 21:28 per outing this season.

If Marner is out, Max Domi will move up to the top line with Auston Matthews. That duo also played together down the stretch last season when Marner dealt with an ankle injury.

"Obviously we're pretty familiar with each other," said Domi. "Great opportunity and [I'll] be ready to go."

"Max is a tremendous passer and sees the ice extremely well," Tavares said. "A lot of similarities between him and Mitch that way, and with their ability to distribute and find the open man........

© TSN