Courtois has stared for Atletico in two-and-a-half years on loan.
Chelsea goalkeeper Thibaut Courtois wants his future decided by the start of the World Cup finals next summer after revealing he is due to hold talks with the Premier League club regarding his future.
The Belgian stopper has never played for the Blues and is in the third season of a loan spell at Athletico Madrid where he has built a reputation as one of the finest 'keepers in Europe.
But questions continue to be asked over his future with Chelsea showing few signs of moving on Petr Cech, 31, leading to suggestions Coutois could be willing to leave Stamford Bridge in order to add some permanency in his career which is still in its infancy.
And the 21 year old said: "I don't know where I will be playing next season. In a short time, I will discuss my future with Chelsea and I want to know their plans.
"After those discussions, I will decide what will be the best option for me. I don't want to wait too long; it's not good to begin a World Cup while you're thinking about transfers. I don't want to wait until May or June.
"I'm not worried at his moment and I hope I won't be worried at all the next months."
Courtois kept the most clean sheets in La Liga last and helped Atletico to a third place finish domestically and to the Copa del Rey where they beat Real Madrid.
But his future at Chelsea appears uncertain, particularly with Cech continuing in goal and showing no signs of slowing down despite making over 400 appearances for the club during nine successful years in west London.
Both Atletico and Barcelona have been credited with a reported interest in Courtois, who was an ever-present for Belgium during their successful World Cup qualifying campaign.
Courtois will likely be among the stars in Brazil next summer and Chelsea risk losing the stopper if they can't guarantee first-team football.
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