Australia World Cup star Cristian Volpato has allegedly tested positive for cocaine after police twice stopped him for speeding in Sydney on the same night. However, Volpato allegedly returned a positive result for cocaine when he was stopped two hours later for travelling at 109km/h in the same 60km/h zone. The police also said their inquiries will continue and a secondary sample of oral fluid was taken for further analysis. Having represented Italy at youth level, he switched allegiances to Australia in May just before the Socceroos announced their squad for the tournament. Players' union Professional Footballers Australia said it was "aware of reports concerning Cristian Volpato and will ensure he is supported".