Tactical changes implemented by Arbeloa appear to be the primary catalyst for Mastantuono's exile. The coach’s recent decision to switch to a four-man midfield has inadvertently squeezed the Argentine out of the starting XI. While Mastantuono had previously spoken highly of the manager, stating that he credited the former defender for his early improvement, that relationship is now being tested by the reality of the bench. The competition for places is only expected to intensify, further complicating the teenager's path back to the first team.
The immediate future looks even bleaker for the €45m man. The impending return of Rodrygo from injury in the coming weeks is expected to push Mastantuono even further down the pecking order. With Arbeloa favouring more experienced options or specific tactical profiles during Madrid's recent slump in form, the opportunities for the young playmaker to showcase his abilities are becoming increasingly scarce, leading many to wonder if his development has completely stalled in the Spanish capital.