Chelsea and Antonio Rudiger have not made any progress over a new contract for the German defender, according to the latest report from Sky Sports.Rudiger has less than six months left on his current deal at the club and reports of no progress over a new contract will worry Chelsea fans.The Blues have been unsuccessfully trying to tie down the German to a new deal at the club. Apparently, the 28-year-old, who is in the best form of his career, is keen to explore all options before making a final decision.Moreover, given his current status at the club and his form in Europe, Rudiger is demanding a salary he feels is worthy of a player like him. He has been one of the best performing players at the club since Thomas Tuchel took over in January 2021. Rudiger has won three trophies in just over 12 months at Stamford Bridge. The Blues are not yet prepared to match those demands, raising concerns over his future at the club.Chelsea boss Thomas Tuchel has made it clear that he wishes to see Rudiger stay at the club beyond this season. The German defender has already rejected a few extension offers from the Blues.Sky Sports Premier League@SkySportsPLThere are currently no talks between Chelsea and Antonio Rudiger’s representatives over a new contract Real Madrid are one of a number of European clubs interested...11:37 AM · Feb 17, 2022131761There are currently no talks between Chelsea and Antonio Rudiger’s representatives over a new contract ❌Real Madrid are one of a number of European clubs interested...The news that Chelsea has not made any progress over a new contract for Rudiger will give hope to other suitors like Real Madrid, Paris Saint-Germain and Manchester United.Antonio Rudiger states that he is happy at ChelseaIn a recent interview with The Athletic, Rudiger revealed that he is feeling happy at the club and wants to win the Premier League with the Blues someday. Having said this, the German also added that his stay with the club will ultimately depend on the decisions taken by the board.It was his indirect way of hinting that he is keen to stay at the club but only if they meet his demands."I feel great here, I have always said it. But there are also other people who have to make decisions. I think the way I play you can see that I’m happy here." said Antonio Rudiger.Fabrizio Romano@FabrizioRomanoToni Rüdiger on his Chelsea contract situation: “I feel great here, I have always said it. I think the way I play you can see that I’m happy here”. #CFC“But there are also other people who have to make decisions…”, he added. @TheAthleticUK6:23 AM · Feb 14, 2022211141278Toni Rüdiger on his Chelsea contract situation: “I feel great here, I have always said it. I think the way I play you can see that I’m happy here”. 🔵 #CFC“But there are also other people who have to make decisions…”, he added. @TheAthleticUK https://t.co/h49ZDFij85Rudiger is also a fan-favorite, which may play a part in the club choosing to give him the desired contract. With only a few months left, the Blues will have to act fast if they wish to retain the German defender.