Zamalek will refuse any suggestions to postpone the Cairo derby, set for June 29th, football director Ibrahim Hassan said on Saturday. The idea surfaced after riots erupted during Ittihad Alexandria's game with Wadi Degla last week. Fans of the coastal club smashed chairs and attacked police forces as their team went one down in the dying seconds. "If the FA fear crowd trouble, we are prepared to play behind closed doors," Hassan added. Both Zamalek and Ahli split the summit on 49 points, six games to go.