As you can see in the video below, Doughty was taking part in a preseason game against the Las Vegas Golden Knight. Doughty was chasing after a puck and went hard into the boards. He went into those boards awkwardly and was immediately left favoring his leg.
Following the incident, Dr. Harjas Grewal took to Twitter with his views on the situation. Essentially, he believes that Doughty either has a broken ankle or a torn Achilles. As you know, the recovery times for both injuries are vastly different.
Hopefully, the injury isn't as severe as Dr. Grewal is suggesting. Otherwise, this could be a huge detriment to the Los Angeles Kings season. They were going to be promising, but if Doughty is done for the year, then they can kiss their hopes goodbye.