L'Equipe says the Gunners have been scouting the youngster this season. Ugochukwu turns 18 today.
Arsenal chiefs have likened Ugochukwu to their former captain Patrick Vieira.
Borussia Dortmund and Tottenham are also interested in the teen.
For their part, Rennes management aren't actively seeking to sell Ugochukwu this summer.
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