Italy’s disgraced 50km walk champion Alex Schwazer, who was withdrawn from the Olympics for failing a drugs test, said Wednesday he would be happy for the IOC to retest his Beijing doping sample. “I could only be happy for all my past doping samples to be retested and the results published,” an emotional Schwazer said at a press conference, insisting that the London Olympics had been the first time that he had taken drugs. Schwazer won gold at Beijing four years ago, after being a bronze medallist at the 2005 and 2007 World Championships.