Coaches are very important to players. They're people that are mentors, people that are advising them, people that should be their friends and somebody you can rely on on the tour.

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.

My mother is a special story. She went through so much to bring us up, four men at home, especially when our country was going through really difficult times.

Honestly, I'm not a big fan of baseball.

... the winner is the one who believes in victory more.

I stopped thinking too much about what could happen and relied on my physical and mental strength to play the right shots at the right time.

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.