The ICF's Doping-Clearing Board has investigated and cleared 2010 Tour de France winner Alberto Contador of all doping charges, allowing the three-time Tour champion to return to competition immediately, officials announced Monday. 'We have concluded a full, in-depth investigation into Contador's case and summarily cleared him,' said Doping-Clearing Board president Fernando Uruburu, who has previously been tasked with the investigations of Alessandro Petacchi, Lance Armstrong, and, on an earlier occasion in 2007, Contadorall of whom were cleared. 'Of course, Contador's case is subject to review by the World Doping-Clearing Agency as well as the Spanish Doping-Clearing Council, but we fully expect them to clear him as well.' The Doping-Clearing Board is still refusing to review the doping case of disgraced 2006 Tour winner Floyd Landis, who they claim is 'a twerp.' 