In terms of playing ability there is nothing to choose between number one and 100. Instead, it's a question of who believes and who wants it more? Which player is mentally stronger? Which player is going to fight the hardest in the big points? These are the things that determine who is the champion.

I'm very fortunate to have the support of the people around me, I feel happy because my wife helps me and people who are close.

I never wanted to change countries; it's something that is part of me.

You have to consistently be successful to be one of the top players in the world, and everything is possible in life.

I cannot guarantee anything.

Even though now I'm pretty popular in my country and tennis is the No. 1 sport, and I'm very flattered that the people recognise me and come up and give me compliments, I'm more a person who likes to have privacy and peace.

We spent all day travelling, living away from the people you love, not sleep in our own bed ... We are far from our own houses. We live in hotels, clubs. And now that I am a father it is much more difficult.