Los Blancos could be in the market for another center back if they want to deploy Xabi Alonso's preferred back three next season.

Manchester United will pocket a significant bonus after Real Madrid completed the long-awaited €50 million (£42m/$57m) signing of Alvaro Carreras.

The Spaniard is a liability defensively, though, and has struggled against top opponents in Europe. The most recent example came when Real Madrid played PSG in the Club World Cup semifinals, and he was outclassed by Achraf Hakimi and Désiré Doué.

Real Madrid look as if the majority of their business is done this summer, but that does not mean to say there are not players that those within the club believe are missing from the squad. After