Veteran midfielder Michael Ballack has admitted he is unsure over his Chelsea future beyond the end of this season.
Ballack, 33, is out of contract in the summer and has admitted that there are currently no talks ongoing over extending his deal.
"There are no contract talks with (owner Roman) Abramovich for me now - and there are other stars at Chelsea who are in the same situation," Ballack told Bild.
"Even coach Carlo Ancelotti does not know anything.
"Despite that, I am feeling very relaxed about my situation. I want to carry on playing at the highest possible level for another two years. I feel I can do it."
Ballack has made 140 first-team appearances for the Blues after arriving on a free transfer from Bayern Munich in summer 2006.