Hamburger have signed Toni Leistner from Queen’s Park Rangers, whilst Hannover 96 sign experienced Swedish left-back Niklas Hult.
They have signed Japanese defender Sei Muroya, cancelled the contract of former captain Marvin Bakalorz and extended with Marlon Sündermann.
Despite only rejoining the club last summer and having a contract until 2023, Zieler was unceremoniously told he would play no further part in Kenan Kocak’s plans in the upcoming season.
The Cologne-born central defender has signed a one-year contract in Hannover.
He will spend the next season at the HDI-Arena having fallen out of favour under current Effzeh coach Markus Gisdol.
Michael Esser has returned to Hannover 96 just six months after leaving to join Hoffenheim.
Hannover 96’s Waldemar Anton has completed his transfer to Bundesliga promoted side VfB Stuttgart.
Hannover 96’s hopes of bringing back Jannes Horn on loan for a second season appear to have been ended by his parent club 1. FC Köln.
Hannover 96 have announced the surprise signing of Freiburg’s veteran midfielder Mike Frantz.
Hannover 96 have announced their first and second new signings of the summer, with Franck Evina and Valmir Sulejmani joining the club.