Photo by Adrian Dennis / AFP via Getty Images
Photo by Adrian Dennis / AFP via Getty Images
The arrival of Xabi Alonso at Stamford Bridge was widely regarded as the defining appointment of the summer among Premier League sides. But how have the tactics changed, seven games in?
Taking over a young, heavily assembled Chelsea squad, the former midfield maestro was expected to bring structural discipline and a clear playing identity to West London.
Five matches into the new campaign, Chelsea sit 10th in the Premier League table. While the results have been mixed, the tactical shifts on the pitch have been undeniable.
The squad has had to deal with major tactical change in the past 12 months, with Enzo Maresca, Liam Rosenior and Calum McFarlane all taking charge in the year before Alonso. Here are five key changes.
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Five tactical changes made by Xabi Alonso at Chelsea
1. The implementation of a fluid back-three formation
Alonso has wasted no time dismantling the tactical frameworks of his predecessors. He has immediately implemented his signature 3-4-2-1 system, a system reminiscent of his successful tenure at Leverkusen.
The setup relies on extreme positional fluidity; out of possession, it transitions into a compact low block, but in possession, it morphs into a hyper-aggressive attacking shape.
Rather than using inverted full-backs, Alonso prefers traditional, high-intensity wing-backs to stretch the opposition and provide natural width. So far, Chelsea have scored plenty, but are conceding too many.
2. An explosive, multi-layered attack
Under Alonso, Chelsea’s attacking output has increased significantly. The system treats the final third as a creative playground, unlocking the best form of Cole Palmer, João Pedro and Morgan Rogers.
Best pals Rogers and Palmer have thrived playing in proximity behind Pedro, occupying spaces between opposition midfield and defensive lines. Rogers has instantly shown why Chelsea spent £117m on him.
Rogers has already matched Eden Hazard’s record in the first four games this season. This attacking potency was on full display during Chelsea’s high-scoring 6-3 victory over Leeds United in the EFL Cup.
3. A fragile “rest defence” in transition
The primary trade-off for Chelsea’s attacking numbers has been an extreme vulnerability to the counter-attack. Alonso’s system commits both wing-backs and central midfielders so far forward.
During sustained possession, the team’s “rest defence” – the defensive structure maintained while attacking – is often completely vacant. When possession is lost, opponents are exploiting massive gaps.
There are huge holes between Chelsea’s midfield and their back three, contributing heavily to the 12 league goals conceded in just five games. The return of Moises Caicedo should really help Chelsea.
4. Uncompromising physical and conditioning demands
Alonso’s high-pressing, high-possession style requires an elite level of fitness, and the manager has set that standard. Insiders note Alonso’s hands-on approach during a grueling 24,000-mile pre-season tour.
He personally led high-intensity training sessions. On the pitch, this has far improved Chelsea’s distance covered compared to last season. In 2025-26, Chelsea were outrun in 37 of 38 Premier League games.
In their five league games this season, Chelsea have been outrun in four of five. But they now average 113.5km per game as a team, while last season, the Blues were at 107km. The worst in the League.
5. Immediate Pressure in the Stamford Bridge Hot Seat
In modern top-flight football, a manager’s pedigree only buys a limited amount of patience. It has been highly entertaining, but the goals conceded and the heavy defeat at Brentford have drawn huge criticism.
With expectations at Chelsea demanding Champions League qualification, Alonso is already finding out that his tactical reputation must be backed up by defensive pragmatism if he wants to navigate the fans.
The Outlook: Alonso has provided identity; now it needs to work
Xabi Alonso has successfully given Chelsea a distinct tactical identity in a remarkably short period. But the opening month of the season has proved that identity is currently unbalanced.
If Alonso can adjust his midfield screens to better protect his backline without sacrificing his team’s creative spark, Chelsea has the ceiling to challenge anyone in the division.
The answer could simply be in getting Caicedo fit again, but if the defensive bleeding continues, it will be a long winter at Stamford Bridge. Alonso is not under pressure just yet, but Gary Lineker says he could be.
Photo by Pedro Porru/MB Media/Getty Images
Photo by Pedro Porru/MB Media/Getty Images
A split of four graphic titled: "Has Chelsea's change in transfer approached worked?!" Image shows Emi Martinez, Danny Welbeck, Jordan Henderson and Maxence Lacroix playing for Chelsea.
A split of four graphic titled: "Has Chelsea's change in transfer approached worked?!" Image shows Emi Martinez, Danny Welbeck, Jordan Henderson and Maxence Lacroix playing for Chelsea.
Chelsea FC v Bayer 04 Leverkusen - Pre-Season Friendly
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