It will go down in history as one of the most bizarre goals.

Duisburg’s Dutch goalkeeper Mark Flekken turned his back to the action taking place on the other side of the field to take a drink only for the ball to move forward in his direction so quickly that he conceded a goal.

After hosts Duisburg had seen a goal harshly disallowed, Ingolstadt quickly moved the ball up the field. Duisburg defender Gerrit Nauber headed back to his goalkeeper, not realising that Flekken was still behind the line with his back to the ball. Stefan Kutschke ran in to score unchallenged as Flekken turned round too late.

“I heard the goal jingle and thought we were leading 2-0,” Flekken said.

In the end Flekken did have something to raise a glass to - Duisburg won 2-1 and rose to fourth in the second division.