The PSG star is set to join Real Madrid at the end of the season.
Cerezo told Radio Marca: "Well, I think that when an important player arrives in the Spanish league, this is always good for us, regardless of the team he plays for, be it Real Madrid, Barcelona or Cordoba.
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"For LaLiga, however, it would always be important to have a player like Mbapp. It's fantastic that he's coming."
On midfielder Koke's renewal, he added: "Everything is underway and everything is, I don't know, in the negotiation stages. When we finish the negotiation we will say."