Watch: Duisburg 'keeper concedes embarrassing goal while taking drink

Duisburg goalkeeper Mark Flekken was left red-faced after allowing one of the most bizarre goals you'll ever see.

The shot-stopper for the second-tier German side picked the worst possible moment to turn his back on Saturday, going to grab his water bottle just as Ingolstadt bore down on his net.

When he turned around, it was too late. Ingolstadt striker Stefan Kutschke was left with an open goal to tap in the equaliser.

Luckily for Flekken, Duisburg went on to win the match 2-1 courtesy of a 66th-minute penalty. Now up to fourth place in 2. Bundesliga, the Zebras are battling for promotion to the top flight.