Lightning coach Jon Cooper held a short, tense news conference after their Stanley Cup Final Game 4 loss on Wednesday night during which he questioned the legality of Avalanche center Nazem Kadri's game-winning goal in overtime.

"This one is going to sting much more than others, just because it was taking on ... it was potentially ... I don't know ... it's hard for me. It's going to be hard for me to speak. I'm going to have to speak. I'll speak with you tomorrow," he said. "You're going to see what I mean when you see the winning goal. And my heart breaks for the players. Because we probably still should be playing."