This decision comes as Reinier is in the final year of his contract with the club.
Instead of training with the senior team or the Castilla players who have a chance to play for Real Madrid, Reinier will be working with players who have been told they will not be part of the team this season.
Reinier previously spent time on loan at Borussia Dortmund, Girona, Frosinone, and Granada.
He was signed from Flamengo for €30m but has yet to make an appearance for Real Madrid.
