Pat McQuaid, president of the Union Cycliste International (UCI), has issued an open letter directed at Spain's secretary of state, Sr Jaime Lissavetzky Díez, relating to the Operacion Puerto doping investigation.

McQuaid asks that the Spanish authorities do what they can to identify the riders whose blood was seized from the Madrid laboratory of Dr Eufemiano Fuentes in May, 2006. So far, of the 200 bags of blood found, only that of 1997 Tour de France winner Jan Ullrich has been positively identified via the use of DNA samples.

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