Bayern head coach Carlo Ancelotti dismissed talk of a crisis ahead of Wednesday's Champions League clash with PSV.
Wolfsburg have sacked coach Dieter Hecking after their poor start to the Bundesliga season.
Borussia Dortmund CEO Hans-Joachim Watzke has questioned Henrikh Mkhitaryan's decision to join Man Utd and ruled out a return.
Bayern Munich drew their second Bundesliga game in a row on Saturday as they were held by Eintracht Frankfurt.
An injury-hit Borussia Dortmund stumbled to a 1-1 home draw against Hertha Berlin on Friday.
Per Mertesacker has discussed the possibility of rejoining Werder Bremen, according to the German club's captain.
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