The Egyptian Football Association (EFA) temporarily suspended Ahly's new signing Moeman Zakeraya on Sunday until it concludes an investigation over whether the player had signed for Zamalek before joining the Red Devils.
The 26-year-old made a surprise move to Ahly on Tuesday after arch-rivals Zamalek failed to make his loan deal permanent.
Zakareya left his parent club ENPPI to join Ahly on a five-year deal after ending an 18-month spell with Zamalek, where he scored seven goals in the Egyptian League to lie on top of the team's scorers chart after 15 matches.
Zamalek filed a complaint against the player on Sunday, claiming that he has already penned a deal with him before making a move to the cross-town foes.
"The EFA decided to temporarily suspend Moemen Zakareya after Zamalek presented new documents concerning the matter,'' EFA board member Mahmoud El-Shamy said on the governing body's official website.
EFA vice-chairman Hassan Farid said in a television interview that he himself had seen the contract that Zakareya signed with Zamalek, dropping a hint that he could be "severely" sanctioned as a result.
Ahly's full-back Bassem Ali was hit with a one-month ban for similar reason in October, having signed for Ahly and Zamalek at the same time.
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