Former WADA boss Dick Pound believes the fight against doping in sport will never be won.
Lance Armstrong's former teammate Steffen Kjaergaard is the latest cyclist to admit to using the banned blood booster EPO.
Kjaergaard says doping at the time was endemic and arranged by the team.
Dick Pound has told Radio Sport's Mark Richardson it's impossible to clean sport up completely.
"The advantage always goes to the perpetrator. He knows in what race he's going to dope, he knows what he's going to use, he knows when he's going to administer the drug and so forth and so you're always playing catch up to some degree."
He says this is one of the reasons they added the eight year look back period for any subsequent analysis.
Pound believes the UCI needs to rebuild their organisation.
"The reputation has to be in tatters at this point. They've kept saying there was never any proof against Armstrong and that he would never have doped and all of these things that were really denial."
Photo: Lance Armstrong (Getty Images)