Calgary Flames forward Matthew Tkachuk’s goal broke a 2-2 tie late in the third period and saddled the Chicago Blackhawks with a 5-2 loss Tuesday.

Tkachuk’s goal deflected in off Hawks defenseman Seth Jones’ skate with 5:35 remaining in the game.

Reese Johnson notched his first NHL point, an assist on Brandon Hagel’s first-period goal, and followed up in the second period with his first NHL goal.

Eighteen seconds after Kirby Dach throttled Blake Coleman in the Hawks center’s first NHL fight, the Flames went up 1-0 on their first shot on goal.

Marc-André Fleury, coming off his first shutout of the season Sunday, misjudged Flames left winger Dillon Dube’s snapper, and it whistled past his glove 1:19 into the game.

Hagel answered for the Hawks midway through the first. Johnson and Ryan Carpenter dug out the puck in a battle by the boards, and Carpenter centered it to Hagel, who whipped it past Jacob Markström for his second straight game with a goal.

Hagel has scored in three of the last four games, and his six goals are tied with Patrick Kane for second on the Hawks.

Milan Lucic put the Flames up 2-1 to close the first period. Brad Richardson swiped the puck from Connor Murphy and dished to Lucic, who fired past Fleury from the right circle.

Johnson, who drew into the lineup with Philipp Kurashev scratched, knotted it at 2-2 in the second period.

Markström turned over the puck and Johnson planted the wrister from the right circle 3:51 into the second.

Midway through the second, Dach set up Kane on a breakaway, but Kane drew iron.

The Hawks controlled the puck in the early portion of the second, but the Flames turned the tables in the back half and carried it over into the third.

That came back to haunt the Hawks with the Flames winning three straight faceoffs and keeping the Hawks hemmed in their zone, setting up Tkachuck’s opportunity.

The Hawks pulled Fleury with 2:12 left, and the Flames padded the lead with goals by Trevor Lewis and Johnny Gaudreau.

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