First I have to agree with the club what the conditions would be for leaving," he told reporters in his homeland ahead of the European Championship qualifier against Iceland on Friday.
"Next week we will have a meeting with Chelsea.
"At the moment it is with my agent. When it is clearer and all the cards are on the table, we will decide.
"I believe that for what I have done for the club and what the club has done for me, we can arrange it so we are all happy."
He added: "I keep all options open, regardless of the country. I will decide based on what is best for me and my family. It does not matter whether it is England, Germany, France or Spain.
"If I move, it brings difficulties. It must change everything, looking for housing, a school for children and so on.
"Therefore, the sooner I know what to do the better. I can plan everything and even rest before the new season."
