Age is nothing, can still win the Grand Slam, pretty happy about my age, more experience.

China tennis - we're getting bigger and bigger.

People in China say: 'If you love your children, send them to New York. If you hate your children, also send them to New York.

After four knee surgeries and hundreds of shots injected into my knee weekly to alleviate swelling and pain, my body is begging me to stop the pounding.

I just feel exciting.

I really do not think about 'Oh, right now I have to defend those points and this title.' I just really want to enjoy playing on the court, in front of the fans.

I've played in a lot of big matches and you learn from them.