Xabi Alonso's Chelsea stint so far has been nothing short of wild. The Blues are playing an extremely entertaining and unique brand of football, with goals arriving at both ends of the pitch. They have shown plenty of attacking quality and produced some huge positives, most notably the return of Cole Palmer to his best form.
However, there has also been one glaring weakness: Chelsea's midfield lacks a spine without Moisés Caicedo.
Ironically, Alonso's early tenure may have already revealed who Chelsea's most important player actually is. And it is not Palmer, despite the England international being the obvious choice for many supporters.
It is Caicedo.
And the statistics surrounding Chelsea without the Ecuadorian midfielder are genuinely shocking.
Xabi Alonso's Chelsea Has Exposed One Major Weakness
Chelsea under Alonso have been fascinating to watch.
They have looked capable of scoring plenty of goals in individual games, but their attacking ambition has also left them vulnerable defensively. The result has been matches that are often open, chaotic and unpredictable.
There have been obvious positives. Palmer returning to his best level is perhaps the biggest of them, with the attacking midfielder once again looking like the superstar Chelsea supporters know he can be.
But while Palmer attracts most of the attention, the midfield has quietly emerged as Chelsea's biggest problem.
As highlighted in our previous analysis of Enzo Fernandez, Alonso's Chelsea initially benefited from allowing opponents to have more possession. That approach allowed Chelsea to attack spaces and play to their strengths.
However, the moment Chelsea were forced to control possession themselves, the weaknesses became much more obvious.
The Arsenal game was a prime example, while the same problem recently surfaced against Hull in a game Chelsea ultimately drew.
Without Caicedo, Chelsea simply lack a dominant midfield presence.
Why Caicedo Is Chelsea's Most Important Player
For casual observers, Palmer may understandably appear to be Chelsea's most important player.
But anyone looking at the team from a tactical perspective should have little doubt about Caicedo's importance.
It is similar to the situation at Manchester City previously, where many supporters viewed Erling Haaland as the club's most important player because of his goals, while Rodri's influence on the team's structure, control and defensive stability was arguably even greater.
Caicedo performs a similar function for Chelsea.
He is not simply a defensive midfielder whose job is to win tackles. His importance comes from everything he provides to the players around him.
He protects the defence, breaks up opposition attacks, wins crucial duels, covers enormous amounts of ground and provides authority in the middle of the pitch.
He also allows his midfield teammates to play with greater freedom because they know there is someone behind them capable of stopping dangerous counter-attacks.
Most importantly, Caicedo gives Chelsea a midfield spine.
Without him, that spine disappears.
And Premier League opponents have seemingly begun to recognise it.
Chelsea's Shocking Stats Without Moisés Caicedo
The numbers, taken from StatMuse, provide perhaps the strongest evidence of just how important Caicedo has become to Chelsea.
1. Chelsea Have Won Just 28.6% Without Caicedo
Since the 2022-23 Premier League season, Chelsea have won only 28.6% of their matches without Moisés Caicedo.
That is an astonishingly low win percentage for a club of Chelsea's stature.
2. Chelsea's Record Without Caicedo: 14 Wins, 16 Draws, 19 Losses
The numbers behind that percentage make the situation even clearer.
Chelsea's Premier League record without Caicedo is:
49 games
14 wins
16 draws
19 losses
28.6% win rate
That means Chelsea have lost almost as many games as they have won when the Ecuadorian has not been available.
For a player who is not primarily responsible for scoring goals, those numbers are incredibly revealing.
3. Chelsea's Record With Caicedo Is Far Stronger
From the 2023-24 through 2025-26 Premier League seasons, Chelsea recorded a W50 D24 L32 record with Caicedo.
That translates to:
50 wins
24 draws
32 losses
106 matches played
The contrast between Chelsea's results with and without Caicedo is difficult to ignore.
It is not simply that Chelsea miss one good player when he is unavailable. They appear to lose an important structural component of the entire team.
The Caicedo Injury Has Come at the Worst Possible Time
This makes Caicedo's current injury setback particularly damaging for Alonso.
Chelsea have already demonstrated that they can score goals without him. The problem is what happens when they need to control a match.
Against teams willing to sit back, Chelsea need midfielders capable of dictating the tempo, maintaining possession and immediately stopping opposition transitions when possession is lost.
Against stronger Premier League sides, the requirement is even greater.
Caicedo provides precisely that balance.
He can drop closer to the defence, protect the centre-backs, cover for attacking teammates and disrupt opposition attacks before they become dangerous.
Without him, Chelsea's midfield can look remarkably passive.
The issue is therefore bigger than simply replacing Caicedo's tackles or interceptions. Alonso needs to replace his authority.
Someone has to take responsibility for controlling the centre of the pitch, communicating with teammates, deciding when to slow the game down and when to accelerate it, while also protecting the defence.
That is an extremely difficult combination to replicate.
Chelsea Need Caicedo Back as Soon as Possible
The biggest problem for Chelsea is that there is no immediate transfer-market solution.
With no opportunity to bring in a new player until January, Alonso must either wait for Caicedo's return or find a tactical solution within his existing squad.
The latter may prove extremely difficult.
Chelsea have talented midfielders, but talent alone does not automatically recreate what Caicedo provides. The Ecuadorian has developed into the type of player whose influence is often noticed most when he is missing.
And that is exactly what appears to be happening now.
Alonso's Chelsea may continue to entertain. Palmer may continue producing spectacular performances. The Blues may continue scoring plenty of goals.
But unless they find a way to restore balance in midfield, their defensive vulnerability could continue to undermine everything good they are doing at the other end of the pitch.
These Stats Prove Caicedo's Importance
Caicedo is not necessarily Chelsea's most spectacular player.
He is not the one who will always score the winning goal or produce the highlight-reel moment.
But he may be the player who makes everyone else function better.
That is why Alonso, Chelsea and their supporters will be desperate to see him return as soon as possible.
Until then, the biggest question facing Alonso is simple: how do you replace a player who provides the spine of your entire midfield?
For Chelsea, finding that answer could determine just how successful, and how sustainable, the wild early days of the Alonso era ultimately become.