Real Madrid have become increasingly unsure of their options at the back over the last six months, as evidenced by their €120m spending spree on the backline to bring in Dean Huijsen, Trent

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