Struggling Hannover have axed head coach Andre Breitenreiter in the wake of Saturday's 5-1 defeat at Borussia Dortmund.
Only FC Nuremberg are below Hannover, who have failed to win any of their last eight matches, in the Bundesliga.
The 45-year-old was appointed Hannover boss in March 2017 and he guided the club to promotion to the Bundesliga that season.
They finished 13th last term but have only picked up two victories in their first 19 Bundesliga matches this season with the last coming in early November against Wolfsburg.
Assistant boss Volkan Bulut has also left Hannover, with club manager Horst Heldt saying: "This decision is extremely difficult for us and for me personally, because the co-operation between Andre and me has been extremely close and very trusting for the entire time.
"His name will always be synonymous with promotion in 2017. We are grateful for the work he and Volkan Bulut have done and their good co-operation."
Hannover are 15/4 to beat RB Leipzig on Friday and 14/1 to win the match from behind.
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