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

But if I keep my core and back strong, the scoliosis doesn't really bother me.

I just want to push the barriers and see what I can do and how far I can go. I am just determined and driven.

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.

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

I try to focus and compete and do positive things for the sport.

As long as I'm in good shape, you'll always see me smiling.