"Bayern Munich leaders do not hide - the team's performance has not been satisfactory lately, so coach Louis van Gaal's seat is increasingly shaking.
German champions lost two recent matches in the national championships to Borussia Dortmund and Hannover clubs and withdrew from the country's cup tournament.
"This is the lowest point of the season," said Bayern's executive director Karl-Heinz Rummenigge. "The last eight days were simply catastrophic. We came to Hanover to win, but the way we played left a very bitter impression.
"We are very disappointed, so it will take time to digest everything that happened. I don't think anyone will sleep tonight. We all have reasons to worry."
Currently, Bayern are in 4th place, but are five points behind Hannover in 3rd place and seven points behind Bayer Leverkusen in 2nd place."