Volpato's immediate availability for the Socceroos rests in the hands of Football Australia, which has the power to suspend him from national team action. The 22-year-old striker has maintained his innocence over the failed drugs test, claiming he never knowingly ingested the substance. He also undertook a test when he returned to Italy, which was negative, his club side Sassuolo said.
Volpato was pulled over by police on Sydney's Anzac Bridge on 24 July and returned a positive roadside reading for cocaine. He then underwent independent testing at a private clinic, where it was claimed he returned a negative reading. However, a secondary oral fluid test by police again confirmed a positive result for cocaine.
Volpato could face no further action, but the positive reading on his secondary police test could have major ramifications for his availability heading into January's Asian Cup. Sources have told AAP that Volpato could be hauled before FA's disciplinary and ethics committee, where the sport's governing body has the power to suspend him from national team action.