adminRodgers, the fourth fastest man in the world this year, is now in doubt for the World Championships in South Korea.
His agent Tony Campbell said the 26-year-old had mistakenly drunk an energy drink which contained the stimulant.
“I don’t want anyone to think Mike is a druggie. It was a stimulant. It was not steroids or anything of that nature,” he said.
“He went to a club with some friends in Italy and he thought he was drinking a Red Bull but he got one of those energy drinks that had a stimulant in it.”
The World Championships take place in Daegu from August 27 to September 4.
Campbell said the positive test happened last month at a meeting in Lignano, Italy, where the US team had a relay training camp.
He said 2009 American champion Rodgers had passed all previous tests, including a blood test several days ago, but has yet to have his second B test sample tested.
Campbell said he expected him to remain in the team until the final result was known.
Rodgers ran a personal best of 9.85 seconds in June and was later third in the US trials for the World Championships. – BBC Sport.
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