Bayer Leverkusen are listening to offers for Omer Toprak.
BILD says Bayer coach Roger Schmidt is willing to sell the 27 year-old stopper after the arrival of Aleksandar Dragovic this week.
Toprak has been linked with Arsenal, where manager Arsene Wenger is desperate to find a new centre-half signing.
The Turk said this week: “It is not certain whether I will stay at Bayer Leverkusen.
"We still have a month and anything could happen until them."