Tour de France Winner Alberto Contador Suspended

Alberto Contador of Spain, wearing the overall leader's yellow jersey, rides on the outskirts of Bordeaux during the 19th stage of the Tour de France cycling race, an individual time trial over 52 kilometers (32.3 miles) with start in Bordeaux and finish in Pauillac, south western France, Saturday, July 24, 2010. (AP Photo/Bas Czerwinski)
AP Photo/Bas Czerwinski
Cycling's governing body says only a "very small concentration" of a banned steroid was found in the urine of Tour de France winner Alberto Contador, but that he has still been suspended.

The UCI says a lab in Germany found clenbuterol in Contador's urine sample on July 21 at the Tour de France. But the amount was only 50 picograms, which the UCI says "is 400 time(s) less than what the antidoping laboratories accredited by WADA must be able to detect."

It says that both Contador's A and B samples tested positive and that Contador has been "formally and provisionally suspended."

It says that the case is still being investigated and that this may take some time.

The UCI released its statement in the early hours of Thursday.