Erythropoietin was part of Lance Armstrong's doping regimen, which led to one of the most dramatic falls from grace in sporting history. The drug is part of a practice called blood doping.

The two observations from the UCI and FIFA clearly indicated that the risks of blood doping abuse are different in individual endurance sports compared with Olympic team sports, for example.

If there is even a tiny bit of a banned substance in the blood, a suspension ... there are hundreds of past ...

The sample is then sent to a World Anti-Doping ... Along with the urine samples collected in the anti-doping truck, around 400 blood samples are taken during the Tour, mostly in hotels and ...