"Bologna are hoping to start contract negotiations with former Germany and Borussia Dortmund defender Mats Hummels, Sky Sport Italia reports.
"Bologna expect to sell center back Riccardo Calafiori in the next few weeks, so they will need a replacement in time for their first Champions League campaign.
The 2014 FIFA World Cup winner has already turned down offers from Saudi Arabia and also rejected a contract with Ajax, but there are many suitors in Serie A. Newcomers to Serie A, Como, Roma, Milan, and reigning champion Inter Milan are interested in Hummels' services.