Chelsea goalkeeper Thibaut Courtois refused to give any assurances when quizzed about his long-term future while on international duty with Belgium.
The 23-year-old, who has been linked with a move to Real Madrid, admitted the Blues' difficult season had changed him and was diplomatic when asked if he would leave Stamford Bridge in the summer.
Courtois told Belgian broadcaster RTBF: "I do not say yes, I do not say no. I do not know: I still have three years on my contract. We must see what Chelsea want.
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"It is true that it (this season) has changed me. Until now I had always won a trophy every season. We hope that next season will be better."
Courtois, who missed several weeks of the campaign after undergoing knee surgery in September, insisted he has never doubted his ability even in testing times.
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"Especially mentally, you have to be strong," the former Genk shot-stopper continued. "But with my character, and having grown up in a family of top athletes, I do not have too many problems with it. I never doubt."
Courtois is away with Belgium preparing for Tuesday's friendly against Portugal - a fixture which was switched to Leiria having initially been cancelled in the wake of Tuesday's Brussels terror attacks.
And he believes he is training at a higher standard with his international colleagues than with his club.
"The level of training is higher among Devils," he said. "There are only world-class players (here), while at Chelsea, there are some players a little less rated and we often train with youngsters as well."
Courtois is one of a host of Premier League-based Belgium stars to have suffered injury-plagued seasons, along with the likes of Chelsea team-mate Eden Hazard, Tottenham defender Jan Vertonghen and Manchester City pair Vincent Kompany and Kevin De Bruyne.
And that is not something that has come as a surprise to the former Atletico Madrid loanee.
"We have matches every three days, no winter break, there are many cup matches," he said. "The pace is high and the contacts are tough."
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