Since they came in with the selfie, it's the worst thing. You hardly ever get asked for autographs any more. It's always selfies.

I don't have a clue. These things don't bother me. I think about the technical stuff but not how many steps or what my heart rate is.

I think my acceleration is very good. That's the key for me.

The older I get, the less I am bothered by talk like that. I have total faith in my coach Yohan Blake, total faith.

It's always a wake-up call to get beaten.

Since they came in with the selfie, it's the worst thing. You hardly ever get asked for autographs any more. It's always selfies.

Rio would be my last Olympics.