Gündoğan has been linked with Liverpool since the appointment of his former manager Jurgen Klopp last month.
The Dortmund midfielder would not be drawn over speculation linking him with a move to Anfield to join Klopp, except to say “They have a good team, a great coach.”
The report states that Juventus also want to negotiate a €20 million deal while Dortmund are holding out for €25 million.
Dortmund sit in second place in the Bundesliga with 29 points in 13 games. Gündoğan has provided five assists and scored two goals in 23 appearances for Dortmund this season.