You can be a little lonely because it's an individual sport.
To be a professional tennis player you need to put in these sort of hours.
I think our strength is this strong relationship we have all together.
When you are very little tennis should be fun, it should be a game.
Anything is possible as long as you have the passion.
I retired because I had a knee injury, my cartilage was wearing out, it was painful and I couldn't put in the four hours of practice each day that I needed to.