Hannover goalkeeper Markus Miller is suffering from mental exhaustion and is to receive hospital treatment.
Hannover have confirmed Christian Schulz, Karim Haggui, Sofian Chahed and Markus Miller have signed new deals.
Hannover have signed Middlesbrough defender Emmanuel Pogatetz and Karlsruhe goalkeeper Markus Miller.
Karlsruhe keeper Markus Miller has admitted he would welcome the opportunity to move to England.
Karlsruhe keeper Markus Miller has committed his immediate future to the Bundesliga outfit.
Karlsruhe goalkeeper Markus Miller is set for six months on the sidelines after sustaining a knee injury.