"I know that I don't have many years left in football," he said to SporTV. "And as they say in Spain, every year is a gift that passes and I can continue playing. Playing after the age of 35 or 36 is already a gift, now I'm 39 and every year I try to enjoy it.
"The important thing is to be physically and mentally well to be able to help the team. And as you already know, I am united by a lifelong love for the national team. I have been here for 20 years and I just want to continue."
He added: "I am in love with football. Every match is special, imagine in the Euro with Portugal, you feel proud... It is a dream, like when I was 20 years old."