Hertha Berlin will add centre-back Dedryck Boyata to their squad for the 2019-20 season after agreeing terms with the Belgian.
Having played for the club and coached their Under-23 side, Ante Covic will succeed Pal Dardai as Hertha Berlin head coach next season.
Niklas Stark was called up by Germany for the first time this year but his season is over after breaking his ankle playing for Hertha.
After five straight Bundesliga defeats, Hertha Berlin have confirmed Pal Dardai's four-year reign at the club will end in May.
Borussia Dortmund moved three points ahead of Bayern Munich in the Bundesliga title race after a dramatic victory over Hertha Berlin.
Mario Gotze will be absent when Borussia Dortmund take on Hertha Berlin on Saturday due to a broken rib.
Niko Kovac is hoping the latest injury setback for Bayern Munich winger Kingsley Coman is not too serious.
Javi Martinez got the only goal as Bayern Munich piled the pressure onto Borussia Dortmund with victory over Hertha Berlin.
Bundesliga champions Bayern Munich will be without centre-back Mats Hummels for Saturday's home game against Hertha Berlin.
Bayern Munich held Liverpool to a goalleon Tuesday, giving head coach Niko Kovac cause to demand the same against Hertha Berlin.