In the middle of the third period in Friday’s Game 4 of the Columbus - Toronto Qualifying Round series, Mitch Marner went off for tripping:

Zach Werenski went to the bench, and this was shown on the Columbus broadcast, where the commentators discussed that the trainer was working on him, and they mentioned Werenski’s history of injury:

However, Werenki’s prior shoulder surgery and epic recovery story involved his left shoulder.

Werenski came back on the ice for the power play at about the one-minute mark — Tortorella had started with first Dean Kukan and then David Savard on the ice for what has to be the single worst power play effort from Columbus all series. Jones and Werenski joined the play, and not a lot happened, Werenski looked fine, doing not much, and then he never touched the ice again.

There was nothing going in his shift before the Marner trip that looked wrong either.

No official word was provided on his condition, but the GM was the one speaking to the media today: