Connor McDavid's skate blade leaves Oskar Sundqvist seriously injured.

The National Hockey League was the sight of a rather scary moment on Sunday night when St. Louis Blues forward Oskar Sundqvist appeared to suffer a serious injury.

Sundqvist and the Blues were facing off against the Edmonton Oilers in what was a largely uneventful game, that was at least until roughly midway through the game's third period. In what seemed like a truly nothing incident, Sundqvist would collide awkwardly with Oilers captain Connor McDavid, sending them both down to the ice in a heap.

It looked like the contact between the two men was very mild but, while McDavid was able to get back to his feet, Sundqvist was unable to do so remaining down on the ice. It quickly became apparent that Sundqvist had been sliced open above the ankle by the skate blade of McDavid's skate, resulting in the Blues training staff signaling to Sundqvist's teammates to rush him off the ice.

Here is a look at the replay:

Blues head coach Jim Montgomery confirmed the bad news following the game's conclusion, but also had a significant silver lining to share with the media as well.

"He got a cut just above the ankle," confirmed Montgomery. "Luckily it did not touch his achilles."

Montgomery added that Sundqvist would be listed as day to day, although he did make comments that indicated that he might also be out for some time.

"The cut was deep," confirmed Montgomery. "I don't know how long it takes until he's back and has the flexibility in his ankle."

A very scary situation and an unfortunate one for Sundqvist, but thankfully it sounds like he has dodged a bullet when it comes to the worst case scenario.