05 March,2013 09:39 AM IST | | AFP
The 23-year-old took silver behind compatriot Usain Bolt in last year's 100m Olympics final.u00a0
"I have heard talk of the fast track at Doha. I am presently the second fastest man in the world. My ambition is to become the best. Anything is possible," he
told the IAAF's website. u00a0u00a0