Alberto Contador verdict to be announced next month A verdict was initially set for mid-January, but CAS opted to delay the ruling, blaming the delay on media allegations of bias against the three-man arbitration panel. Contador tested positive for the banned anabolic agent clenbuterol during the 2010 Tour de France, but the Spaniard was cleared by the Spanish Cycling Federation (RFEC) in February 2011, prompting the World Anti-Doping Agency (WADA) and International Cycling Union (UCI) to appeal the decision to CAS. The 29-year-old Spaniard claimed he had ingested the banned substance by eating a contaminated steak, an explanation which satisfied the RFEC but which failed to pass muster with the International Cycling Union (UCI) and World Anti-Doping Agency (WADA). If CAS upholds the appeal the Spaniard faces a competition ban and being stripped of his 2010 Tour title and last year's Giro d'Italia and any other victories on his palmarès since July 2010. Meanwhile, Omega Pharma-Quick-Step's Levi Leipheimer won Argentina's Tour of San Luis ahead of Contador on Sunday. The 38-year-old took the race lead after he won Thursday's fourth-stage time trial In the western province of San Luis. I'm happy with this victory. We didn't come to San Luis with the objective of winning the tour but after the [early] stage wins that changed," Leipheimer said. It's very important for the team to have achieved this victory, we've started a season in very strong form. Now our main objective is the Tour de France. Contador won two mountain stages to Mirador del Potrero and Mirador del Sol at Merlo. He finished 46 seconds behind Leipheimer.