After reviewing all available replays and consulting with the Linesman, the Situation Room determined that Ty Rattie exited the playing surface and executed a legal line change with Jujhar Khaira prior to Puljujarvi touching the puck in the offensive zone. Therefore, the call on the ice was upheld - good goal Edmonton Oilers.
Since the Coach's Challenge did not result in the original call being overturned, the St. Louis Blues are assessed a minor penalty for delaying the game.
