I've learned about employee relations; I've learned about following your instinct. One of the biggest mistakes you can follow is not following your instincts, you know? A lot of times your instincts will tell you what to do if you have a good one. Now, if your instincts are terrible, then you ask for advice. But if you have good instincts, you definitely have to follow them, or else you regret them.

Serena and I, we don't have anything to prove ... we still set a very high standard.

I truly believe that whoever feels the most confident is usually the one to win.

Whoever is across the net, I want to win. Whoever that person is, that's the day I want to win.

Every Olympics is something special. If you're fortunate enough to play for your country - there's just so much energy. It's truly amazing.

For years I felt that I didn't have enough stamina and then, four years ago, I felt like I was not getting enough air but I was diagnosed with exercise-induced asthma. The medicine for asthma never worked.

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