Marin Cilic has been hit with a nine-month ban after testing positive for banned substance . `` The substance in question originated from a glucose tablet purchased at a pharmacy in France , '' Cilic said in a statement Monday . ` Traces of Nikethamide found in Croatian 's urine sample taken last April . The ATP said it was investigating the case and that Cilic's results would be reviewed by an independent panel before he could return to competition. Cilic will take case to the Court of Arbitration for Sport .
Marin Cilic has been hit with a nine-month ban after testing positive for banned substance . Traces of Nikethamide found in Croatian 's urine sample taken last April . The ATP said it was investigating the case and that Cilic's results would be reviewed by an independent panel before he could return to competition. Cilic will take case to the Court of Arbitration for Sport .