Arsenal face a battle to keep hold of William Saliba this summer.
The Gunners signed the defender last year before loaning him back to St Etienne for this season.
While his campaign has been interrupted by injury, Saliba has still impressed for ASSE and his form has attracted interest from Real Madrid.
Okdiario says Real coach Zinedine Zidane is a big fan of the youngster, rating him as the 'new Raphael Varane' and believes they should be trying to sign him this summer.
Arsenal are expected to keep hold of Saliba, though will have their resolve tested by the Spanish giants this summer.