Barely ten minutes into the second half, Premier League success Dejan Kulusevski collided with Czech defender Tomas Holes.
Players' heads collapsed and Kulusevski remained on the field.
He received his face, was treated by a doctor and Anthony Elanga seemed to be preparing for a change.
But Kulusevski got up and gave the thumbs up to continue playing, but a big and visible bump on the face after the blow.
The match is in progress. The text is updated.