I will not be the world champion. But I will be the Olympic champion.

It must be very hard for him. We're all sorry and I would have been glad to celebrate again.

Anti-doping is something we all need to do. It's part of the sport. But there's no need to put on an act.

I've been thinking of nothing else for the past year. It's incredible. I'm Olympic champion.

Not what I wanted, but what can you do? At least I know I'm fast.

It's the best day of my life. It's like a dream.