The 28-year-old is out of contract with the Blues in the summer and this combined with negotiations over a new deal stalling, has opened the door for clubs on the continent to start pre-contract discussions with him as we enter January.
In addition to Real Madrid being interested, Rudiger’s camp has reportedly also begun preliminary talks with Bayern Munich, PSG and Juventus.
Which club would suit Rudiger?
Should the player not be able to agree to a new deal at Stamford Bridge – something it is thought that both parties want, it poses an interesting question as to where Rudiger will end up.
While a return to his native Germany with Bayern may be tempting, every player who attracts interest from Real Madrid, invariably finds a move too hard to resist.
Rudiger has started more games than any other player under his compatriot boss Thomas Tuchel and still remains an important part of the Chelsea team.
Italian teams have always presented an interesting option for defenders, however, Juventus do not have many other selling points, apart from potentially making him their captain, while PSG can afford to throw money at him.
It could well be the prestige of Los Blancos that swings the decision though, with the club starting to recover from the financial effects of the global pandemic, while coach Carlo Ancelotti is a serial winner in the game.
Considering the Spanish side’s potential transfer activity in the summer which could see both Kylian Mbappe and Erling Braut Haaland join, a move to the Santiago Bernabeu may be too hard for the player to resist.
If the Blues are unable to retain Rudiger, he would leave a significant hole in the team and a replacement would have to be a priority.
Chelsea were understood to be interested in Sevilla centre-back Jules Kounde in the summer, however, the Spanish side was holding out for in excess of £65 million, which the Blues were unwilling to pay. They could be left with little choice this time around.