Real Madrid coach Julen Lopetegui insists he's happy with Vinicius Junior with Castilla.
There's been calls for Vinicius to be promoted from the reserves.
But Lopetegui says: "Vinicius is competing very well at Castilla and when the time comes, I will decide.
"Mariano can play at any time because it he is a regular in the squad and will help us."
He added: "Pressure for me? In each competition, the pressure on Madrid always exists."