(CNN) -- "Regime! Be very scared of us We are coming tonight with intent  The supporters of Al Ahly will fire everything up  God almighty will make us victorious Go, hooligans!" Chant of the Al Ahly Ultras, before the Egyptian revolution It was as if a levee had finally broken, and for once there was no retribution. Some 7,000 fans of Al Ahly, Egypt's largest soccer club, gathered for the first match of the Egyptian football season and chanted the names of the regime and its apparatchiks they had fought for the past four years. "F*** the mother of Hosni Mubarak!" shouted Assad, the leader of Al Ahly's militant ultra group Al Ahlawy, at the police in front of him. Thousands followed suit. "Go f*** your Minister, Habib al Adly!"
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Al Ahly and Zamalek face each other in the Cairo derby at the city's International Stadium
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The two teams' ultra groups fought alongside each other during the recent uprising
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They are now again in opposition following the overthrow of longtime ruler Hosni Mubarak
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Both teams are involved in the battle for the Egyptian league title
But a few months earlier the "ultras" among both sets of fans stood side by side during @placeholder's revolution.