Bayern Munich president Franz Beckenbauer has warned his side that their season could be over by December unless they reverse their recent form.

“They have known each other for a long time, which means they should be able to play together,” Beckenbauer told Tuesday’s Bild daily.

“But they can’t run.

“They just stand there. I see no energy, no will, no motion.”

Last week’s 0-0 draw with Celtic left Bayern in danger of exiting the Champions League at the first stage for the second successive season. Domestically, the club has struggled with Saturday’s 2-2 draw with bottom club Cologne leaving them six points behind leaders Stuttgart.

“If the team don’t pull themselves together, the season could be over in December,” said Beckenbauer.

Executive manager Uli Hoeness said after the Celtic match that he could see a great run coming for Bayern but he changed his mind after the draw with Cologne.

“Do you know who you’ve just played against?,” Hoeness asked his players after the game.

“That was the bottom club.”