Relegation-threatened Union Berlin parted ways with coach Nenad Bjelica on Monday, a day after the Bundesliga club's president had given the Croatian his backing.
Union lost 4-3 at home to relegation rivals Bochum on Sunday and sit one point and one place above the relegation play-off spot with two games to play.
Bjelica only took the job in Novmeber after Urs Fischer was sacked after a poor run, despite securing a first Champions League berth the season before.
A club statement said Marco Grote, together with existing assistant coach Marie-Louise Eta, is being placed in temporary charge for the last two games - including Saturday's crunch relegation clash at lowly Cologne.