Andre Onana failed a doping test in October, Ajax will appeal the 12-month suspension at the Court of Arbitration for Sport, claiming the doping offence was committed “unintentionally” when he mistakenly took his wife’s medicine.
The suspension is effective from February 5, and will apply to all his football activities at both national and international level.
Ajex added that: Onana made a mistake with the product and mistakenly took his wife’s medicine, which ultimately led to UEFA’s action against the goalkeeper.
However, the European Football Association believes that, according to the prevailing anti-doping rules, an athlete has a duty at all times to ensure that no prohibited substances enter their body.