The 26-year-old has also been linked with Fulham, AC Milan, Schalke 04 and Rubin Kazan.
Speaking in German newspaper Bild, the player’s representative, Ali Bulut, said: “Milan, Liverpool, Schalke 04 and Rubin Kazan have asked for the player in the recent weeks.
“There are no formal offers at the moment. Depending on what Bayer say he could be sold in January.”
