By growing up at a center for people with special needs, I learned to always fight hard to achieve what I want. In this regard, I was incredibly lucky.

As a child, I was lucky to have the support of my parents because starting a tennis career is a very expensive adventure.

I was a little bit lost in my head after winning a Grand Slam. You're like: 'So what's the next goal? What do you want now? Where do you want to be? It's not a problem if you lose.'

Stress is part of your career. You have to accept it and deal with it because there is a lot of emotion in tennis.

Any professional athlete will tell you that the mind is everything. For me, there is no shame in saying that I visualize and I meditate, because it really works.

With kids and all the other activities around the house, I'm finding it harder to give my full attention to basketball.

Eventually, the truth comes out in sport and in life. When you win, you're praised, and when you lose, you're criticized. That's normal.

You look at the NBA: there's all these young kids that are drafted on potential. They go to bad teams, they're in bad locker rooms, and now we got this analytics stuff that doesn't teach kids how to play. We've got these workout coaches that don't teach kids how to play basketball.