The call-up to Spain's U-19 squad was a beacon of light in the encroaching darkness. It represented another milestone in Mateo's international career, a validation of his talent on a stage far removed from the toxic politics of his club.
But it also came at a time when those same political undercurrents were beginning to create complications that extended far beyond the manicured pitches of La Masia.
At sixteen years old, he was being fast-tracked through Spain's youth system at an unprecedented rate, a decision driven by national team coaches who recognized his exceptional abilities and leadership qualities, and who, for now, remained insulated from the commercial pressures that had poisoned his club.
The Spanish Football Federation's training center at Las Rozas, on the outskirts of Madrid, buzzed with an electric excitement.
