ATHLETICS: Failed drug tests a setback for sport, says Bolt
Sprinting great Usain Bolt admits the recent positive drug tests of his Jamaican teammates have been a setback for the sport.
World 200-metre champion Veronica Campbell-Brown, tested positive for a banned diuretic in June, just a month before Asafa Powell and four other Jamaican athletes who also failed drug tests.
Six-time Olympic champion Bolt stresses that he is "clean" and has been doing "phenomenal things" from a young age.
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