Borussia Dortmund's Jurgen Klopp is looking to bolster his defensive ranks after the long-term injury to Neven Subotic.
Borussia Dortmund manager Jurgen Klopp has revealed that defender Manuel Friedrich is on trial at the club.
Michael Ballack is undergoing a fitness regime in an attempt to regain a Bayer Leverkusen first team place.
Bayer Leverkusen's Manuel Friedrich is on the verge of signing a contract extension after agreeing a deal.
Bayer Leverkusen went top of the Bundesliga following a 2-0 home win over Cologne on Friday.