Nurnberg general manager Martin Bader has admitted the club are likely to sign a defender in January.
Nurnberg have completed the free transfer of midfielder Hanno Balitsch from Bundesliga rivals Bayer Leverkusen.
Hanno Balitsch has rejoined Bayer Leverkusen after deciding to part company with Hannover.
Hannover 96 midfielder Hanno Balitsch has agreed a new two-year contract extension.
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