There are some agents who do a good job looking after players but there are others who stifle and mollycoddle them.

Something interesting has happened over the last 10 years in the Premier League. Players who once would have been discarded as expensive and too old have become important parts of title-winning squads.

It is one of my pet hates when I see players who have agents who do everything for them. They don't know how to set up their own bank accounts, they don't know what they are spending their money on and they can't make their own decisions.

A coach once told me there are four factors that determine a players' performance: his tactical awareness, his physical condition, his technical ability and his mental strength.

Gifted Nutrition was able to show me that they had FDA-compliant ingredients in their supplements. I thought that was really huge, especially when you are trying to show people that you are a natural athlete.

I was passionate about soccer. I still am. Odd, though - playing soccer always made me much more anxious than playing tennis. On soccer days, I'd be out of bed by 6 in the morning, all nervous. But I was always calm when it was time for a tennis match. I still don't know why.

Maybe if I was born in Kosovo, I might not be where I am now, so I need to thank Switzerland, of course, because I went to school there, learnt to play football there, and started my career there.

Getting a sleeve at my age is a midlife crisis for the man who can't afford a sports car.