The trainer for Asafa Powell and Sherone Simpson has insisted he didn't give the sprinters performance-enhancing drugs and says it's time for them to take "responsibility for their doping instead of

Former 100-meter world-record holder Asafa Powell, Jamaica teammate Sherone Simpson and their trainer were formally placed under criminal investigation for violating Italy's doping laws, police said

International athletics is in turmoil after some of the biggest names in sprinting returned positive doping tests.
Former 100-meters world-record holder Asafa Powell of Jamaica, American champion Tys

Triple Olympic champion Usain Bolt could have an unexpected challenger when the Jamaican world record holder runs his first 100 metres on Saturday.

Asafa Powell, who held the world record before Bolt