I can improve it a little bit. But it's my head, it's the way I am. So at the end of the day, I will be who I am and I will win how much I can win.

I was very competitive. I hated losing. No matter what, I had to win.

Don't get too excited when I am winning, and don't get too depressed when I am losing. Just keep it cool.

The Olympics is not for tennis and tennis does not need the Olympics. It is not my goal in life to win a gold medal.

You know why I want to win? Because of 15,000 reasons inside of the tennis court.