He told Portuguese channel NOW: "When I leave the national team, I won't tell anyone in advance and it will be a very spontaneous decision on my part, but also a very well thought-out one.
"Right now what I want is to be able to help the national team in their upcoming matches. We have the Nations League ahead of us and I would really like to play."
The veteran added: "At the moment, I'm not thinking about being a coach of the first team or any team. It doesn't even cross my mind, I've never thought about it. I don't see my future going through that. I see myself doing other things outside of football, but only God knows what the future holds."