Explanation:
Video review confirmed that the actions of Montreal's Michael Matheson caused Toronto's Ryan O'Reilly to contact Sam Montembeault prior to John Tavares' goal. The decision was made in accordance with Note 2 of Rule 38.11 (ii) which states, in part, that the goal should be allowed because "the attacking Player was pushed, shoved or fouled by the defending Player causing the attacking Player to come into contact with the goalkeeper."
Penalty: 2:00 minor penalty: Delay of Game - Unsuccessful Challenge