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.

I think the sport needs the help to continue to motivate athletes.

I love competing. I am so competitive. I definitely need to win because I hate losing. I am the type who if I know I will lose I won't compete.

I try to lead by example.

I've got everything I wanted so I'm just happy.

You do not want to get married at 22! Especially if you're famous, because girls are going to be throwing themselves at you.

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.