Former Real Madrid midfielder Esteban Granero says Dani Ceballos should stay.
The midfielder is weighing up his options this summer.
But Granero says: "He is a Real Madrid-level footballer but (Zinedine) Zidane's criteria cannot be discussed by anyone."
Granero also encouraged Napoli midfielder Fabian Ruiz to accept an offer from Real should a bid be made.
"I would tell him to take the opportunity, Real Madrid's squad makes you a better player."
