Maurice Greene

Every race is not perfect; there are obviously a lot of things I can improve on at the end of the race.

You'd like more people to recognise what you do is special. But I take the attitude that the best thing I can do for my sport is to be the best at it. The best way people will come to recognise that track and field is a great sport is to see athletes excelling at it.

It is only those who believe in their ability who shine when it matters.

When the gun fires you must concentrate for every second on the way to that finish line. You should know exactly how long it will take you to and think about every step of the race you are about to run.

If you do not train hard you will never fulfill your potential.

My stance has always been that there's no place in our sport for drug users. I've always said it's a ban for life if you come up positive. I stand by that.