Rudiger's current contract expires at the end of the season and has yet to sign a new deal with the Blues.
He's thought to be holding out for a whopping £400,000-a-week wage package at Stamford Bridge, which would make him the world's highest-paid defender.
The German international will be free to speak to foreign clubs from January 1 if Chelsea fail to extend his stay at the club.
Some of Europe's elite have been linked with the player, including Juventus and Paris Saint-Germain.
Speaking to Wetten Freunde, he said: "Rudiger is in talks with Juventus, Man City, Tottenham and even PSG, who still need a defender.
"It's difficult to see him signing a new contract. He will join one of the four teams mentioned."
Speaking last month, Thomas Tuchel shared his thoughts on Rudiger's contract stance and revealed his keenness to hold onto his defensive services.
He said: "I hope that they find solutions, but it's not only between coaches and players, and what we wish for and that's why it's between the club, the players and the agent at the moment.
"We hope that they find the solution and everything I can say, he plays excellent, and since a long time very consistent, on a very high level.
"I feel him very calm and focused, and it's not a distraction for him. So everything is in place, and give things the time they need. Sometimes it needs a bit longer, sometimes things are very fast.
"There's no news from my side, and I think that Toni feels very, very good at Chelsea, he feels very respected by his team-mates and he feels the importance that he has in the team and in the squad.
"That's well deserved because he delivers, he feels the love from the supporters when he plays. He's in the strongest league in Europe, in a big club, so not many reasons to change that."
Featured Image Credit: PA
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