For what it’s worth, the club’s CEO Edwin van der Sar has backed the 24-year-old, believing the incident — Onana had taken a pill prescribed to his wife after feeling unwell — was a genuine mistake. “I am 100% convinced that the positive doping test was the result of a misunderstanding,” Van der Sar told De Telegraaf. “That was a huge shock for us and the same was obviously true for him when we sought contact with him in Cameroon. “Andre was not feeling well on the day of the check-up and thought he had taken a headache tablet, but it turned out that he had taken a pill from a strip of his wife's medicine, which she had been prescribed after the pregnancy of their first child. It looked quite similar in name and the packaging. It's stupid bad luck."