As his contract with Chelsea comes to an end, center-back Antonio Rudiger is said to have rejected down a new agreement at Stamford Bridge.
His contract in London expires in the summer, allowing him to begin negotiating pre-contract deals with other clubs as early as January.
After winning the Champions League with Thomas Tuchel's team last season, the 28-year-old is rumored to want to quit the club when his contract expires, wanting to return to mainland Europe.
According to Marca, Rudiger's representatives have already spoken with representatives from European powerhouses Bayern Munich and Real Madrid, with both clubs preparing wage packages for the German in January.
Rudiger has played every minute of competitive action for the Blues thus far this season, after swiftly regaining favor after Tuchel's appointment last season, and has appeared in every knockout game of their successful Champions League campaign.