The difficult part was to tell the world that I was finishing.
tennis is a 100-mph chess match.
I have an office in Argentina, I go there every day, so I work.
That was one of those moments where I felt so confident. I played three matches in the same day.
When I got to match point in the final I was afraid I'd be a little nervous, but I just said, You have to stay focused, just think about what you have to do.
For me retiring wasn't hard once I knew that that was the decision I was going to make.