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."