CORRECTION: Ivan Basso has not admitted to doping, contrary to a previous driftless area post. Here is a quote from Basso, via The Associated Press:
"I have admitted attempted doping only. I've never taken any doping substance nor undergone any illegal blood transfusions."
Basso said he intended to participate in the Spanish doping ring busted by Operation Puerto, going so far as storing bags of blood, but never did.