Chelsea may have finally kept a Premier League clean sheet with their 2-0 victory over Everton, but one encouraging result should not convince Xabi Alonso that his defensive problems have disappeared.

Pedro Neto’s second-half brace secured three important points, while Chelsea’s defenders and midfielders deserve credit for helping the team see out the match after a difficult opening period.

However, the real test for Alonso is whether his players can reproduce that defensive discipline consistently, particularly against opponents capable of exploiting the spaces Chelsea leave when they attack.

The blues had gone 22 consecutive Premier League matches without a clean sheet before the Everton victory, highlighting just how difficult defensive stability has been for them.

That record suggests the problem runs deeper than individual mistakes from the centre-backs, because defending effectively requires the entire team to work together rather than leaving the back line to deal with every threat.

When Chelsea lose possession, their attackers must be prepared to press immediately, while the midfielders need to close passing lanes and prevent opponents from progressing through the centre.

If those responsibilities are neglected, the defenders are forced to retreat under pressure, often facing dangerous situations before they have enough time to organise themselves.

Alonso therefore needs to use the coming training sessions to establish clearer defensive responsibilities across his starting eleven, ensuring that every player understands when to press, when to track runners and when to protect the team’s shape.

The midfield partnership is particularly important because players such as Moisés Caicedo must be supported by teammates who can help screen the defence, win second balls and prevent opposition attacks from developing freely.

At the same time, Chelsea’s wide attackers and full-backs must coordinate their movements carefully, since pushing too many players forward without adequate cover can leave vulnerable spaces for opponents to exploit on the counterattack.

The Everton match offered encouraging signs, with Chelsea showing greater control after the break, but the team will need to maintain that concentration when facing stronger attacks and more clinical finishers.

Alonso has already acknowledged the importance of repeating clean sheets rather than treating one successful defensive performance as proof that the problem is solved.

That is the mentality Chelsea must adopt if they hope to challenge consistently at the highest level, because their attacking quality will count for little if opponents can continue finding weaknesses in their defensive structure.

The next step Is not simply demanding better performances from the defenders, but building a system in which every player contributes to winning the ball back and protecting the goal.

Chelsea have finally taken a step in the right direction against Everton, but Alonso must now turn that promising result into a lasting defensive improvement.

Sources: [The Guardian — Everton 0-2 Chelsea match report](https://www.theguardian.com/football/2026/oct/17/everton-chelsea-premier-league-match-report?utm_source=chatgpt.com)