Referee Fahim Omar has been appointed to officiate Ahli's game against Benfica in the club's centennial celebrations on Sunday, the Egyptian champions announced. Omar will be assisted by Ayman Degesh and Nasser Sadek, Ahli said on their official website on Wednesday. Ahli have sent invitations to several high-profile football figures, including Portuguese legend Eusebio, to attend the club's second match in their centennial celebrations. The Cairo giants played against Primera Liga runners-up Barcelona in April at Cairo International Stadium and were handed a 4-0 defeat.