I'm trying not to pay too much attention to the rankings because calculations can distract you.

Joking around is part of my personality, just who I am.

I have always valued the care for my body, and my mind and had holistic approach to life. I always thought this is utmost importance for my tennis.

It gives me goose bumps and little butterflies in the stomach when I start thinking about the 'golden slam.'

This time last year I would have said Federer would beat Sampras's record. Now I'm not so sure. His aura has gone. He's not as dominant as he was, and since I beat him in Australia he's looked frustrated. Players are beginning to challenge him now, especially myself and Rafa. He's got 12 Grand Slams to his name and maybe he will beat Sampras, but now I'm here it will be tough for him.

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.

Tennis is my life, obviously; I need to focus, I need to win. But it's not the only thing. I'm not going to play forever.