![Sprinter Asafa Powell of Jamaica displays the Nike Zoom Aerofly during a promotional event in Beijing August 12, 2008. Former world record holder Powell says Jamaican compatriot Usain Bolt and American world champion Tyson Gay will not run him down ... Sprinter Asafa Powell of Jamaica displays the Nike Zoom Aerofly during a promotional event in Beijing August 12, 2008. Former world record holder Powell says Jamaican compatriot Usain Bolt and American world champion Tyson Gay will not run him down ...](https://c8.alamy.com/zooms/9/161975c94e904d3d97abdfb6f3f6bdab/2d26tkt.jpg)
Sprinter Asafa Powell of Jamaica displays the Nike Zoom Aerofly during a promotional event in Beijing August 12, 2008. Former world record holder Powell says Jamaican compatriot Usain Bolt and American world champion Tyson Gay will not run him down ...
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