Before, I guess, mum and dad were everything, but now, in my case, I had two new girls and all of a sudden they're completely dependent on you and there's a third generation. It's a funny shift all of a sudden. You have the babies, you have yourself and then you have your parents.

I have to fit holidays around tournaments, particularly the grand slams, in Melbourne, Paris, London and New York.

I'm as patient a father as I am on the tennis court. It takes a lot for me to get really upset, but sometimes kids can get you really cross if they really keep bugging you.

My heart is in South Africa, through my mum. My mum being from here, me spending a lot of time here as well, I feel most connected to this part of the world.

I used to do a lot of video analysis early on, but more for pleasure and looking at my own technique.

When I was 12 years old, I was just horrible. My parents were ashamed to watch my matches. I would play on a court at the local club and they would watch from the balcony. They would scream, 'Be quiet' to me and I would scream back, 'Go and have a drink. Leave me alone.' Then we would drive home in a very quiet car. No one speaking to each other.

It's not so simple to just stay in the moment and trust your game and your strength that you can turn it around.