I agree with Chris Horner. "I'm a rider. I'm clean. You're telling me I should quit because someone else cheated? No f*g way!"
What does "clean" mean to Chris Horner?
- "Never used performance enhancing drugs" (does not exclude blood doping)
- "Have never tested positive" (does not exclude using substances when he wasn't tested, or using substances for which he was not tested, or that could not be detected).
Based on the history of countless riders who later turned out to be cheaters, either or both is very likely.