At 12:26 of the first period in the Jets/Flames game, Winnipeg requested a Coach's Challenge to review whether a Calgary player interfered with Winnipeg goaltender Connor Hellebuyck prior to Troy Brouwer's goal.

After reviewing all available replays and consulting with NHL Hockey Operations staff, the Referee determined that the actions of Calgary's Matthew Tkachuk caused Winnipeg's Matt Hendricks to contact Hellebuyck before the puck crossed the goal line, preventing him from doing his job in the crease.The decision was made in accordance with Rule 78.7 which states "The standard for overturning the call in the event of a 'GOAL' call on the ice is that the Referee, after reviewing any and all available replays and consulting with the Toronto Video Room, determines that the goal should have been disallowed due to 'Interference on the Goalkeeper,' as described in Rules 69.1, 69.3 and 69.4."
Therefore the original call is overturned - no goal Calgary Flames.
Since the Coach's Challenge resulted in the original call being overturned, the Winnipeg Jets retain their time-out.