As a tennis player, or any professional athlete, our career has a shelf life. I don't want to waste any opportunities, I don't want to look back on it when I'm 45 and think I could have done a lot more.

I didn't know I could even be a professional tennis player, honestly. All this is actually very, very unexpected.

A lot of times when I'm confident and relaxed on the court, I'm going to be a pretty tough out. But when I'm not so confident and not so relaxed, I tense up and my balls fall short and everything. It just sort of unravels.

In the past, I've played where I only just rely on my serve.

It's true I always try to be as seductive as possible but I wouldn't be here if I couldn't play tennis.

In today's world, social media, people get judged so much by the last thing that happened, I almost feel, in a way, young people get to see that not only is it OK to fail - that's the way you get to championship success, whether it's sports or business or life.

If I have to return to Brazil, I'd like to play at Corinthians again. It represents a lot, I was born and raised there, my footballing career began there when I was nine, I've spent my entire childhood there.

Your employees have lots of opinions about everything - your strategy and vision; the state of the competition; the quality of your products; the vibe in the workplace. There are tons of things you can learn from them.