I work out in a studio. Every day, regardless where I am, at least two hours. I need it. I can't cease it.

In Argentina at various tournaments, it's great. Every day it's full, everybody's crazy about tennis, everybody wants to play tennis.

I think in the lifetime of a tennis player there are many times where you feel that tremendous confidence.

When I lose a match, I know that I lose on the court and not in life.

tennis is a 100-mph chess match.

I loved to play, I was competitive, I wanted to win, that was all I knew. In the first few years tennis is a game. Later, it becomes a job.

For me retiring wasn't hard once I knew that that was the decision I was going to make.