The crowd at the United Center let out a loud cheer halfway through the second period on Tuesday night. From a distance, it appeared the Blackhawks took their first lead of the game, but an alarm didn't sound and Chelsea Dagger didn't boom throughout the arena.

Just 28 seconds after Nick Leddy answered a goal from Ducks forward Ryan Getzlaf to tie the game at one, a shot was fired by Brandon Saad into a cluster of players in front of Anaheim's net. The crowd may have gone wild, but the players skated away casually, assuming the shot didn't go in.

But after a review in Toronto, Saad's attempt was ruled a goal and the Blackhawks took a 2-1 lead over the Ducks.

"I don't think anyone on the ice -- [the Blackhawks] included -- thought there was even a chance it's a goal," Ducks right winger Bobby Ryan said. "We had guys discussing plays to make off the next face-off because it felt like it was so blatantly obvious that it didn't go in.

"But I guess some of the guys here said there was an angle [that showed the goal], and then it came down to whether the net was off, not whether the puck crossed the line."