Anti-doping investigation reveals riders could still be manipulating the system to avoid detection

Full report from Operación Ilex reveals that lack of overnight and weekend lab testing in Spain makes performance enhancing drugs increasingly difficult to detect

Anti doping control
(Image credit: Getty Images)

Professional cyclists could still be using methods, similar to those used by Lance Armstrong, to avoid testing positive during anti-doping tests, according to the full report from the Operación Ilex investigation. 

Armstrong notoriously managed to avoid testing positive during his career despite using performance enhancing drugs, including EPO, during his seven Tour de France victories. During the heights of his career he remained defiant and insisted he was clean due to never returning a positive test result. 

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