Real Madrid doesn't wait for anyone, not for a name, not for the past, not for media reputation. Alexander-Arnold is finding this out firsthand. He arrived with the label of a modern, versatile full-back, but his performance so far has been very poor.
A start that doesn't convince
Alexander-Arnold landed at Santiago Bernabéu with a clear mission: strengthen the right flank. His résumé in the Premier League was impeccable. However, adapting to LaLiga is proving tougher than desired.
In attack, his runs have lost the spark that made him famous in England. His crosses aren't finding a target and his accuracy has dropped. In defense, he's struggling more than he should against fast wingers and is losing duels that a Madrid full-back can't afford to lose.
Militao's verdict
Éder Militao, one of the silent leaders in the locker room, has been clear: "He'll be a substitute with Xabi." The phrase, which has echoed through the halls of Valdebebas, isn't gratuitous. Militao knows well what this club demands: intensity, commitment, and consistency.
Xabi Alonso, current head coach, doesn't forgive defensive mistakes. Alexander-Arnold, so far, hasn't shown the solidity needed to be a starter in a team that aims for everything. His position is key in the tactical structure, and defensive doubts weigh heavily in the coach's decisions.
Carvajal, the owner of the flank
Dani Carvajal, when he's healthy, is irreplaceable. His physical display, experience in big matches, and ability to balance attack and defense make him a player Xabi trusts the most.
This leaves Alexander-Arnold in a complicated position. Having a good foot isn't enough; at Madrid, the right-back must be a wall and a constant threat. Carvajal fits that profile and, barring injury, will remain the undisputed starter.
The comparison between the two is inevitable. Carvajal offers reliability and grit; Alexander-Arnold, for now, insecurity and little influence on the game.
A future that depends on him
Not everything is lost for the Englishman. He has technical quality, vision, and experience on big stages. The problem is those virtues haven't shown up with the white jersey.
Real Madrid's demands are immediate. You either adapt or you're left out. Alexander-Arnold will need to improve his defensive intensity, gain confidence in one-on-ones, and contribute more in attack to convince Xabi Alonso.
If he doesn't manage it, his fate will be clear: he'll be a top-level substitute who only plays in rotations or less demanding matches. For a player of his potential and salary, that would be a failure.
For now, Militao's phrase sums up the reality: at Madrid, level isn't assumed, it's proven.