London, Sep 5 (ANI): German playmaker Michael Ballack has landed another blow on crisis-hit Chelsea by revealing that he might quit at the end of the season.
Just hours after the Blues were banned from signing any new players until January 2011; Ballack has threatened to leave the club even shorter on bodies.
The German international midfielder, who will be 33 this month, is in the final year of his 130,000 pound-a-week Chelsea contract.
The club has not even opened talks over a new deal.
Ballack said on Friday: "I will decide after the 2010 World Cup if I will continue playing or if I will stop."
"I will only continue as long as I still enjoy myself and have ambitions in the sport," The Sun quoted him, as saying. (ANI)