Franke claims Contador involved in Puerto cover-up

German anti-doping crusader Werner Franke has claimed to be in possession of incriminating documents which, he says, proves Tour de France winner Alberto Contador was involved in Operación Puerto. Franke described the Spaniard's victory as "the greatest swindle in sporting history", before going on to claim the documents not only list Contador but also the substances

"The name of this Mr Contador appears on several occasions on the court and police documents," he told German television station ZDF. "All of this has been simply concealed and hidden under the carpet while the name Contador was erased from the list of supicious riders."

Franke claims to be in possession of a detailed list of performance enhancing and banned products used by Contador, which appear in sworn statements following the raid on Fuentes' medical practice.

"He took insulin, HMG-Lepori, a hormone to stimulate the secretion of testosterone and also a product for asthma called TGN - in brief I have before my eyes a protocol for doping," he said. "All of this has been covered up, at least in Spain."

When questioned on how he came into possession of such documents, Franke refused to give away any information. "They simply landed in my briefcase, that happens sometimes, and I promptly handed them over the Bundeskriminalamt {the German national police - ed.}".