Bayern Munich coach Carlo Ancelotti is enjoying life in the Bundesliga and said "the ambience and atmosphere" are different compared with Real Madrid.
Thomas Muller became the first player in league history to win all his 11 matches against one opponent.
Bordeaux offered Zidane his first managerial role at the end of the 2013-14 season, only for the Frenchman to reject his former club.
Bayern Munich moved two points clear at the top of the Bundesliga, continuing their perfect start to the season.
The German Football League has received €7.91 million in solidarity payments from UEFA for non-participating clubs in their competitions.
Schalke suffered their fourth consecutive defeat of the season as they crashed to a 3-1 defeat against Cologne on Wednesday.