According to Sport, Carvajal bid farewell to Real Madrid a few days ago, ending his 23-year career with the club. After the captain's departure, Real Madrid is left with only 6 registered Spanish players, with Heijsen and Carreras confirmed to stay. The future of the other four remains uncertain.
The four homegrown players whose future at Real Madrid is undecided are Gonzalo García, D. Ceballos, Fran García, and Raúl Asensio. All four are currently on the transfer market. Whether Raúl Asensio stays depends on whether Real Madrid signs another center-back after finalizing Konaté's transfer. If all four leave, Mourinho will only have 2 Spanish homegrown players under him next season.
To balance the squad, Real Madrid might promote Thiago Pitachi to the first team, a decision that will depend on Mourinho. FIFA and the Spanish Football Federation's regulations have no restrictions on this point; any team can freely choose player nationality. The Spanish national team will be the most affected.
UEFA has more specific regulations for its competitions, but this will not affect Real Madrid's first team, because even if some of these players are not Spanish, they can still meet the relevant requirements. As long as a player is trained at the club for three years between the ages of 15 and 21, or trained under the same conditions within the same FA system, they will be considered a "club-trained player" by UEFA.
Next season's Real Madrid squad fully complies with these regulations, and UEFA's requirements are already strict. If two or more of the aforementioned four Spanish players leave, the trend of decreasing homegrown players at Real Madrid will continue. Real Madrid can only alleviate this situation by signing homegrown players, such as Rodri; or by recalling academy players, such as Víctor Muñoz, Jacobo Ramón, or Chema Andrés, or by continuing to promote other players from "La Fábrica."
In the Real Madrid locker room, French and Portuguese will be used more frequently than Spanish. With Konaté joining, the number of French players in the squad will increase to five, reuniting with Mbappé, Tchouameni, Camavinga, and Ferland Mendy, assuming none of them leave. Portuguese will be spoken by four Brazilian players—Vini Jr., Rodrygo, Militão, and Endrick—as well as Mourinho and the Portuguese players he specifically requested, such as Bernardo Silva.