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To stay interested in tennis, I have to mix it up with other things.

Tennis is an individual sport, and I am quite a self-conscious person.

Everything is tennis for me, it's my career and it's entertainment, but it's also a business.

I've been playing tennis, and just whatever sport is in front of me I will do.

I have a passion for playing tennis and enjoy the workload and struggles of performing in this amazing global sport.

I think the tennis is only a game. You can lose. You can win. After that? In life, there are much more important things than tennis.

Tennis is my life, obviously; I need to focus, I need to win. But it's not the only thing. I'm not going to play forever.

I'm actually a pretty good tennis player!

Tennis has to become everything to you if you're going to make it to the top. You have to live it.