Chelsea goalkeeper Thibaut Courtois is set to sign a new contract with the Blues after returning from international duty.
The Belgium international made an important contribution to Atletico Madrid's Liga title last season and was immediately promoted to regular by manager Jose Mourinho at Chelsea.
And it now seems the Blues want to extend his contract which currently expires in the summer of 2016.
"It's not yet signed," the goalkeeper told Sky Sports.
"I am here with the national team so it is difficult, but when I am back at Chelsea I will probably sign the new contract."
The 22-year-old also revealed that it was not easy to replace goalkeeper Petr Cech but explained that they are working well together during training sessions.
"We don't talk about the situation," the goalkeeper said.
"I know he has played 10 years at Chelsea and that now I am playing and for him it's not the nicest situation.
"But that is the decision of the board and the trainer.
"He is working hard in training to be ready when I cannot play or I am maybe not playing well. We work well together."
