Prudhomme warns dopers of 'Russian roulette'

Tour de France director Christian Prudhomme has expressed his disappointment over the latest scandal to affect the tour, after Team Astana withdrew following Alexandre Vinokourov’s positive test for a banned blood transfusion.

The 33-year-old Kazakh rider – who won Saturday’s 13th stage, a time trial in Albi – reportedly had two different kinds of blood globules, which indicates he has taken blood from someone of a compatible group.