Professional tennis has become an extremely physical and unbelievably competitive sport. Injuries are the bane of tennis players, and it goes with the territory.

For some reason, every time I peak in my career, I injure myself. So, I'm constantly on the comeback trail.

Not many people know, but my joints are extremely hypermobile, and that's why I'm more prone to injuries. That's why most of my major injuries were with the joints. I had a career-threatening wrist injury where picking up a fork to feed myself was a problem, and the thought of playing tennis again was so far from my mind.

You want to try and win as many slams as possible in your career. As a tennis player, that's what we always dream of as a kid, wanting to play slams, wanting to win them.

My message is to get human beings to love God, love their neighbor and for the life of me I just don't see the downside of human beings not being so mean to one another and actually care for one another and not steal from one another and not murder each other for their tennis shoes. That's the message I have.

You can't explain the feeling of singing hit songs to an audience - it's like being a genuine sports star at the peak of their powers.

My dad was a professional basketball player, and my mom was a hell of a tennis player.

Brazil is the land of football. They have a lot of passion.