The Mail on Sunday revealed Dutch court documents show an expert at a 2001 criminal trial found French rider , Servais Knaven , took artificial EPO . Knaven has been held the role of ‘ directeur sportif ’ at Team Sky since 2011 . His employment comes in spite of Team Sky 's 'zero tolerance ' policy . Team Sky 's unnamed experts exonerated Knaven of any wrongdoing . EPO expert Robin Parisotto told the MoS : ‘ The only known causes of such a low EPO level in blood [ 0.7 ] is either due to significant renal damage ... or the current and previous administration of recombinant [ banned ] EPO ’ Team Sky said the new medical opinion does n't change their position on Knaven , who maintains his innocence and is a valued member of Team Sky .
The Mail on Sunday revealed French court documents show an expert at a 2001 criminal trial found Dutch rider , Servais Knaven , took artificial EPO . Knaven has been held the role of ‘ directeur sportif ’ at Team Sky since 2011 . His employment comes in spite of Team Sky 's 'zero tolerance ' policy . Team Sky 's unnamed experts exonerated Knaven of any wrongdoing . EPO expert Robin Parisotto told the MoS : ‘ The only known causes of such a low EPO level in blood [ 0.7 ] is either due to significant renal damage ... or the current and previous administration of recombinant [ banned ] EPO ’ Team Sky said the new medical opinion does n't change their position on Knaven , who maintains his innocence and is a valued member of Team Sky .