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

There are some guys you have problems beating because of their style – I always had difficulties with guys like Michael Chang and Andre Agassi because their returns were so good and they played so well in defence.

But I still serve pretty big and that’s one of my biggest weapons, so if my shoulder holds up and I can count on it, I can win a few matches and then you never know how the other guys are going to react to the fatigue and the length of the matches.

It’s better to have done because then you know what the player is going through and you understand the pressure, but then on the other hand I know a lot of people that were good players but not good coaches, and vice versa.

But whatever happens, when you leave London you feel like a winner because it’s a great venue and it’s so nice to be there with all the guys.

More than specific memories of achievements, for me I remember the feeling you get when you were just at your very best – when you felt like you were floating across the court and could put the ball wherever you wanted.

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 had a coach that was not a great player, but he taught with kids and juniors so that by the time he was 50 he was great. He helped me make the top 5 in the world and yet he wasn’t a great player himself.

If you win, fine, if you don’t, you try again next year.

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.