‘A disgrace’

Bayern Munich veteran Thomas Mueller has apologised to their fans and admitted the 5-0 thrashing at Moenchengladbach in the German Cup was the worst defeat he has experienced during 13 years playing in the famous red shirt.

"We were picked apart from A to Z in the first half," the 32-year-old Mueller, who made his Bayern debut in 2008 and is approaching 600 appearances for the Bavarian giants, told ARD.

"I don't know if I've ever experienced anything like that before in an FC Bayern shirt. We have to apologise to our fans."

Furious Bayern sports director Hasan Salihamidzic described the visitors' performance as "a collective blackout -- we simply didn't turn up".

Gladbach fans started celebrating long before the final whistle as the song 'Oh, wie ist das schoen' (Oh, how beautiful this is) echoed around the stands.

"Of course, this was a disgrace for us," added Mueller.