This archive report was first published on 17 September 2019.
On September 15, the CAF Appeal Board rejected Wydad's request to replay the second leg of the Champions League final, which ended in controversy in May.
Wydad's president, Said Naciri, confirmed on Monday that they will take the case to CAS, as permitted by the CAF statutes.
"We will defend our rights until the end. For two months we have been fighting this "oppression". Esperance don't deserve to win the cup in the way we witnessed in Rades," Naciri told BBC Sport.
"Our next step is to take the case back to CAS to seek fairness."
"Our next step is to take the case back to CAS to seek fairness." — Said Naciri, Wydad Casablanca President
The controversy surrounding the Champions League final began when VAR was unavailable to judge a disallowed equaliser in the second leg, leading to a row between the two teams.
Wydad refused to continue playing, and the referee awarded the victory to Esperance, who were leading 1-0 (2-1 on aggregate) in the final.
The CAF Appeal Board's decision was based on the fact that the absence of VAR had no legal effects and that the referee's decision was final.