You can be a little lonely because it's an individual sport.

You should just enjoy it, but as soon as you decide that it is going to be your career, no matter whether you want to be a doctor or an architect or anything else, you need to work 5 hours a day.

It's a tough world out there and all the guys are fighting hard and the competition is really tough.

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.

I think our strength is this strong relationship we have all together.

To be a professional tennis player you need to put in these sort of hours.

Suddenly in the end when it's over, you feel a big weight on your shoulders. That's the role of the captain. Unfortunately, it's sometimes like that in sport.