
Egypt international defender Mohamed Abdelmonem (Photo: Nice FC official account)
The deal is reportedly worth €4.3 million, including a €1 million bonus package, as Ahly will also retain a 10 percent sell-on clause, ensuring their involvement in any future transfer.
The agreements have been in place for weeks but Abdelmonem only arrived in France on Wednesday after completing documents.
This transfer marks Abdelmonem's first professional experience outside Egypt.
Previously, Ahly loaned the player out domestically on two separate occasions - to Smouha and Modern Sport - before bringing him back to the Red Devils in 2022.

The 25-year-old center-back has been a standout performer for Ahly over the past three seasons, making 115 appearances, scoring eight goals, and securing 10 major trophies, including three Egyptian Premier League titles and two CAF Champions League crowns.
His consistent performances have made him a key figure in the Egyptian national team, where he has earned 25 caps and scored two goals.
He will give us a lot!
Nice, who have struggled at the start of the Ligue 1 season with just one point from two matches, see Abdelmonem as a crucial addition to their squad as the team hopes to make an impact in this season's Europe League.
Nice's sporting director, Florian Maurice, expressed confidence in Abdelmonem's abilities, highlighting his experience, heading skills, and ability to handle pressure.
"Collectively, we're convinced that Mohamed will give us a lot," explained Maurice.
"We were in continuous contact with each other throughout the summer. He played his last league game on July 29th, and after he won the title with his club, we sped things up so that he could join us. He's a central defender with a lot of experience, including at international level, as well as good heading, tough pressing, and great passing. He's also used to pressure, which is a good thing," the French side's sporting director said.
Moreover, Jean-Pierre Rivère, OGC Nice's president, praised the signing, emphasizing the significance of Abdelmonem being the first Egyptian player in the club's history.
He expressed hope that Abdelmonem will leave a lasting mark at Nice.
"Following on from Tanguy [Ndombele], Jonathan [Clauss], and Moïse [Bombito], we've again managed to sign an international, which proves that our project is a clear and ambitious one," Rivère said.
Eternally grateful!
From his side, Abdelmonem expressed his gratitude to Ahly and stated his excitement about joining the club and taking the next step in his career.
"I will be eternally grateful to Ahly, a club with which I grew as a player and as a man," said the player.
"It was time for me to take up a new challenge at a big European club, and I've chosen to join OGC Nice in order to take that next step in my career. I'd like to thank the club for believing in me, and I'd like to thank Al Ahly for making this transfer possible. I'm going to give my all to make the fans proud and to help OGC Nice to achieve its aims," Abdelmonem added.
Abdelmonem will become the second Egyptian player in Ligue 1.
Mostafa Mohamed, another Egypt international, plays for Nantes.
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