Stephan Lichtsteiner is unsettled at Juventus.
The Swiss defender is unsure where he stands at Juve after the arrival of fullback rival Daniel Alves from Barcelona.
German sources say a move to the Bundesliga could be on for Lichtsteiner this month.
Borussia Dortmund and Schalke 04 are eyeing a move for the experienced defender.
Both Bundesliga clubs are preparing offers of €8-10 million to sign Lichtsteiner, with Juve happy over the price being mentioned.