Explanation:It was confirmed that Montreal's Artturi Lehkonen had possession and control of the puck before he entered the attacking zone prior to Joel Armia's goal. According to Rule 83.1, "a player actually controlling the puck who shall cross the line ahead of the puck shall not be considered 'off-side,' provided he had possession and control of the puck prior to his skates crossing the blue line."
Penalty:2:00 minor penalty: Delay of Game - Unsuccessful Challenge