Contador wants anti-doping tests revised

Tour de France champion Alberto Contador has called for anti-doping regulations to be revised following his positive test for a banned substance.



The Spaniard, who has won cycling's most prestigious event three times, is provisionally banned after clenbuterol was found in his urine sample.



Contador says the system is in doubt and should be changed. He says there has to be a limit set, so that quantities as tiny as those found in my body, do not count as a positive.



Contrador blames food contamination for the positive test and has totally rejected rumours of a possible blood transfusion during the Tour.