I go to yoga classes and work on my core.

Women's tennis is getting faster and the girls are getting more athletic, so I need to push myself to become a better athlete. I think 2013 showed me, like a few other years how important being healthy is and how I must listen to my body. During this off season I have been a little smarter on how I train and how I treat my body.

I can't say I don't like acting, but I can't imagine a career when I have to spend 70 percent of my time in a trailer eating Snickers bars.

If I can create something that allows a woman to feel better - that is the true reward.

Well, fans always root for the underdog.

That is what is most special about achieving equality - the positive signal that it will send the world over to the next generation of girls dreaming of winning Wimbledon or becoming a scientist or going to the moon as an astronaut.

My next goal is to be number one in the world.