When I was 40 my doctor advised me that a man in his 40s shouldn't play tennis. I heeded his advice carefully and could hardly wait until I reached 50 to start again.

There was endless action - not just football but sailboats tennis and other things: movement. There was endless talk - the ambassador at the head of the table laying out the prevailing wisdom but everyone else weighing in with their opinions and taking part.

Tennis is a perfect combination of violent action taking place in an atmosphere of total tranquillity.

I'd just as soon play tennis with the net down.

I was always very interested in science and I knew that for me science was a better long-term career than tennis.

I felt sad because everyday I had to wake up early to practice before going to school. After school I had to go back to tennis again and then after tennis I had homework. I didn't have time to play.

I used to get nervous you know if my parents would come watch. And then I would get nervous if my friends came and watched. Today it's not a problem anymore actually because now I enjoy it. I see that they you know respect me immensely and I try to put on a good show and show that I can still play very good tennis.

I carried through well with my tennis. I got the respect by usage of the tennis racket.

Tennis has had a very positive impact on my life.

I just try to stay positive and focused on the tennis not let anything get to me like crazy questions. But I'm tough let me tell you tough as nails.

Even though now I'm pretty popular in my country and tennis is the No. 1 sport and I'm very flattered that the people recognise me and come up and give me compliments I'm more a person who likes to have privacy and peace.

First of all let me say 1:15 in the morning for 20 000 people to still be here I wasn't the winner tennis was. That's awesome. I don't know if I've ever felt so good here before.

My mom she's from Ireland coached tennis in Nigeria when she was a missionary and turned me on to it when I was young.

Well immediately we announced yesterday or the day before we're building with my foundation a youth tennis and learning center in Austin. I'd like to be hands on with that and not see it periodically.

Tennis was always sort of a - a learning. It was a vehicle for me to discover a lot about myself. And the things that I sort of discovered at times I not only didn't want to see it for myself but I certainly didn't want millions of people to see it.

My father had never watched tennis never liked tennis too much. He said 'OK we buy a racket we watch together ' because we didn't know anything. It was a process of learning together that made it more interesting.

It's a pity that the tennis is really going down the drain. Every year it's getting worse and worse and worse. There has to be a radical change and I hope it will be really soon.