There are things that bother me. I try not to let them, but they do.

I don't listen to music before a race - my coach doesn't like it, he thinks I might lose my focus and concentration.

I've worked hard over the years, I've been injured and I've worked hard through it, and I've made it.

You have good days and bad days.

Worrying gets you nowhere. If you turn up worrying about how you're going to perform, you've already lost. Train hard, turn up, run your best and the rest will take care of itself.

People always say I'm a legend, but I'm not. Not until I've defended my Olympic titles. That's when I've decided I'll be a legend.

Rihanna, Beyonce and Nicki Minaj - we may not win, but we would have a lot of fun [in 4x400m relay team].