Some people say I have attitude - maybe I do...but I think you have to.

A lot of people say, "Oh, I get this high from working out." I've never felt that, maybe because I've worked out for so long it's just a norm for me to push super, super hard. I don't feel the euphoria. But at the end, when it's all done, I feel euphoric. I'm like, "Yes, the work is done." You just feel like a glowing feeling inside.

It's every Williams for themself.

I wear a lot of tight dresses, so I'm like, 'I need to do my sit-ups!'

Just believe in yourself. Even if you don't, pretend that you do and, at some point, you will.

It's a great feeling to have accomplished what I have, but I want to do more.

Sport teaches you so much, and you can translate that to other parts of life. But it's definitely a lot of dedication, not just for, you know, myself or the children, but the parents, the family finances, the money that you could be putting toward retirement you're using to buy tennis shoes and restring rackets and tennis lessons. So if you don't make it, then you may never retire. It's definitely a lot of risk.