Right after the break, the German goalkeeper, enjoying a resurgence in the Bundesliga this season, suffered a severe blow as he attempted to gather a rebound from a strike on the edge of the box.

As Loris Karius threw himself towards the ball, Robin Gosens was already sliding in to clear with an outstretched right leg. The defender's momentum carried his studs straight into Karius's face, injuring himself in the process and also forcing his substitution.

For now, Schalke 04 have not provided any further update on the condition of the shot-stopper, who left the pitch injured after the clash with his teammate.