To be the world No. 1 has always been a dream for me.

It's very expensive to be a professional tennis player with all the travel and the flights and the hotels and everything.

I have a very close relationship with my parents.

As long as I win I'm doing something right.

I have proven people wrong so many times. I was told when I was younger there is no chance I will make the top 100, top 50, top 30. Every time I have proven them wrong. It's kind of nice.

I don't know, I always get the question 'how do you feel after the game today?' and, of course, if you're winning you feel great and if you lose you don't feel good. I think that's a pretty obvious question.

I start laughing every time because the media talks to me like I'm finishing my career and I only have one year left and time is running out.