The Blues may have lost rookie Vladimir Tarasenko for a bit after Wednesday's 1-0 loss to Colorado.

Tarasenko took a shot to the head on a check in the third period.

He had to be helped from the ice and television replays suggested he was significantly stunned.

He was taken to a nearby hospital for examination.

The good news: Tarasenko was on the Blues' plane coming home.

Officially, he has an upper-body injury.