My main goal is to stay healthy because when you're injured you realise how lucky you are to have your health.

I'm 17 years old and there are many great things ahead. If I don't win the U.S. Open this year, it's not going to be a disaster in my life.

When I make commitments I like to stick to them, especially when I'm giving back to kids. Just giving them an example of what they can achieve. I love giving back to kids. It's fantastic.

I try not to hit a swing volley and run back. So my swing volley is kind of that transition to the net. It's been one of my favorite shots ever since I was young.

I don't need many things. I don't need glamour and attention to be happy. I'm very happy being settled and working my butt off and trying to win grand slams.

Since I'm constantly in the sun, I use sunscreen daily.

I had so many outs in my career. I could have said, I don’t need this. I have money; I have fame; I have victories; I have Grand Slams. But when your love for something is bigger than all those things, you continue to keep getting up in the morning when it’s freezing outside, when you know that it can be the most difficult day, when nothing is working, when you feel like the belief sometimes isn’t there from the outside world, and you seem so small. But you can achieve great things when you don’t listen to all those things.