If I am not playing at one hundred percent, it is going to be very difficult for me to win.
I have the same bedroom I've always had. It's clean and tidy when I get home, and after two or three days it gets messy and my mother nags me.
Some people get very confused about my game. They think it's better if the court is slow, because I have a good defence. But the faster it is, the better for me. My spin is more painful for my opponents, my aggressive game works better.
It's hard to say, 'I don't believe in God.' I would love to know if God exists. But it's a very difficult thing for me to believe.
The bad thing about the [tennis] calendar is how it is made and obligates you to play tournaments all year. If you want to achieve the most you can (and) go as high up (in the rankings) as you can, you have to play from the start to the finish because there are important tournaments from the beginning to the end.
We'll try and be very aggressive, we'll try and speed up and change gears, and we'll see who's going to win.
Barcelona, the tournament is, for all the Spanish players, an amazing event. I think is one of the top events on tour because is a historic event with a lot of tradition. A lot of years of the tournament, a lot of great players have been playing there. And it's in a real tennis club.
There is some moments on the career of everyone that are important ones. Is obvious that first title on clay makes a big difference. After that, I was confident enough to keep going, winning in Barcelona, in Rome, then in Roland Garros.
I feel lucky to keep playing tennis, being healthy all those years, to compete in one of the most beautiful events of the year, without a doubt.
Everybody is doing the best things possible to still healthy and to play as long as possible.
Every girl has her own character, every boy his own mind.
If the girls and boys have talent and feel like working on themselves, they can become champions.
Some people may learn something from the way I play tennis. But there are also players who are better than me in certain techniques.
Today people hit the ball with much more strength. Almost every player is capable of playing a winning stroke from any position. This means the balls arrive more quickly. If you want to reach them, you have to slow down from a high speed or suddenly change direction. These are moments when you can injure yourself, and that's what wears us out.
It should not be a child's only goal to become the best player in the world. That would be a bad, a harmful attitude.
Honesty, willingness to exert oneself, friendship - all these things shaped me too.
All sports are continuously developing, but what they all have in common is that the speed is increasing. That's also true of tennis; the ball is getting faster and faster.
I am very lucky because when I come back home, I have a completely normal life. I can relax, playing golf, fishing - doing what I want. I know when I finish a tournament, I am going to relax at home.
I'm really, really emotional.
New York is a special place; it's a city that I love.
It's more a tennis problem than a mental problem. The transition is difficult. It depends how much time you have. Playing on grass can sometimes be a bit of a lottery.
For sure, with golf it's not a physically demanding sport like tennis. That's what makes tennis great - you combine both things. It's a very mental sport and at the same time can be dramatically physical. But I do admire the mentality of sport more than the physicality because physical performance is much easier to practice than mental performance.
I dont have good luck in the match points.
Always I believe that I can play better. But I am happy.
I am lucky because my family are comfortably off. My father has his own glass business.