There is always a dream, for me, in the locker room before matches as well during the day. If you have a strong mind, a strong tendency to keep you strong, I think your dream is coming.

We all know how to play tennis. We all know how to hit the ball. It's more just about those details - managing all those early rounds and just managing yourself to make sure you're ready for whatever is coming up next.

I never thought I was going to make a career out of tennis, to be honest, until I was 10 or 11 years old. One of my earliest memories is when I was seven, and I was competing against players that were three, four years older than me. I didn't take it too seriously at the time. I was having a lot of fun.

I think mental preparation is really important. Every day, you've got to imagine your goal.