Frederik Sorensen is reportedly heading back to Serie A after his FC Koln experience, with Atalanta, Sassuolo and Cagliari interested.
The 25-year-old Danish international defender is no stranger to Italian football, having played for Bologna and Hellas Verona.
According to Sky Sport Italia, he is considering a return to the Peninsula in January.
Able to play at centre-back or right-back, he has been linked with Atalanta, Sassuolo and Cagliari.
He only extended his contract with Bundesliga side FC Koln in January and has been at the club since the summer of 2015.
This season he has contributed two goals and two assists in 23 competitive games.