Doping What Does it all Mean to Gay,Powell and the rest
positive doping tests by both Tyson Gay and Asafa Powell (as well as those of Jamaican female Olympic medalists Veronica Campbell-Brown and Sherone Simpson). With their positives, the list of fastest sprinters of all-time just had two more asterisks attached to it. And it once again brings up the same questions about Usain Bolt.
