Chelsea vs Real Sociedad provides Xabi Alonso with one final opportunity to assess his team before the 2026/27 Premier League season. From defensive control to Chelsea’s new-look attack, here are five areas the Blues must improve in their final pre-season test.
By Abiodun Adewale Adeniyi | Founder & Editor, Beyond the Final Whistle
August 15, 2026 | Football News / Chelsea
Chelsea’s pre-season reaches its final stage as Chelsea vs Real Sociedad brings Xabi Alonso’s side back to Stamford Bridge for one last test before competitive football begins.
The match represents more than another summer friendly. Chelsea officially confirmed that Chelsea vs Real Sociedad would be Xabi Alonso’s first match in charge at Stamford Bridge and the club’s final preparation before the new Premier League season. The fixture was scheduled for August 15 at 2:00 PM BST.
According to the official Chelsea announcement for the Real Sociedad friendly, the occasion also carries a personal connection for Alonso, who began his professional playing career at Real Sociedad before later returning to the club as a coach.
But sentiment cannot be Chelsea’s priority.
There is also an interesting personal connection.
Real Sociedad played an important role in Alonso’s career as both a player and coach, adding another layer to the occasion.
But sentiment cannot be Chelsea’s priority.
After an eventful pre-season, there are still important questions Alonso needs his players to answer.
Chelsea have shown flashes of quality, but flashes will not be enough once Premier League points are available.
Here are five things Chelsea must improve against Real Sociedad before the new season begins.
1. Chelsea Need Greater Defensive Control
This may be Alonso’s most important task.
Chelsea have demonstrated encouraging ideas during pre-season, but their defensive structure has not always looked completely secure.
The problem isn’t simply defending the penalty area.
It is what happens before opponents reach it.
Alonso wants Chelsea to play proactively. That means defenders stepping forward, midfielders pressing aggressively and the entire team attempting to keep the opposition away from dangerous areas.
When that coordination works, Chelsea can suffocate opponents.
When it doesn’t, spaces appear.
And Premier League teams will exploit those spaces ruthlessly.
Against a technically capable Real Sociedad side, Chelsea need to maintain compact distances between defence and midfield.
The defensive line cannot move forward without protection.
The midfield cannot press without the players behind them following.
Everyone needs to move as one unit.
That’s the type of organisation Chelsea will require once competitive football begins.
2. Alonso Must Find Chelsea’s Best Midfield Balance
Chelsea don’t lack midfield talent.
The challenge is finding the right combination.
Moisés Caicedo starts against Real Sociedad, while Enzo Fernández and Roméo Lavia are among the substitutes.
Each provides something different.
Caicedo offers defensive awareness, physicality and ball-winning ability.
Fernández provides passing range and progression.
Lavia can help Chelsea retain possession and play through pressure.
But Alonso’s challenge isn’t simply selecting the three most talented midfielders.
He needs to determine which combination gives Chelsea the best balance.
Can Chelsea dominate possession without becoming vulnerable when they lose the ball?
Can the midfield progress possession quickly enough to supply Palmer and the forwards?
Can someone protect the centre when another midfielder moves higher?
These questions will become even more important against the Premier League’s strongest teams.
We have already examined Chelsea’s midfield situation in our analysis of Enzo Fernández and Chelsea’s midfield.
Real Sociedad should provide another useful test.
3. Chelsea Must Turn Possession Into Chances
One of the biggest questions surrounding Chelsea vs Real Sociedad is whether Alonso’s side can turn possession into genuine attacking chances
But possession doesn’t win football matches.
Chances do.
Chelsea need to become more dangerous with the ball.
Cole Palmer, Morgan Rogers and João Pedro are all included in the starting XI, giving Alonso considerable creativity and attacking quality.
Palmer remains capable of changing a match with one pass, one dribble or one moment of individual brilliance.
Rogers provides something different.
His ability to carry possession through midfield and attack defenders directly can make Chelsea much more dangerous during transitions.
We’ve taken a closer look at his potential impact in Morgan Rogers: Can Chelsea’s £117m Record Signing Transform the Blues?.
João Pedro, meanwhile, leads the line.
The challenge is making all those pieces complement each other.
Chelsea don’t need three attackers constantly asking for the ball in the same areas.
They need movement.
When Palmer drops deeper, somebody must attack the space ahead of him.
When Rogers carries the ball forward, teammates must provide options around him.
When João Pedro moves away from the centre-backs, somebody must exploit the space he creates.
Those relationships could determine how dangerous Chelsea become this season.
4. Chelsea Must Become Better Against Strong Opposition
Pre-season results should always be treated carefully.
Fitness, experimentation and tactical preparation matter more than trophies during summer friendlies.
But performances can still reveal patterns.
Chelsea’s defeat against Juventus raised questions about whether Alonso’s team could convert possession into enough genuine attacking opportunities against disciplined opposition.
We discussed those concerns in our Chelsea vs Juventus analysis.
Real Sociedad provide another opportunity to respond.
Chelsea don’t necessarily need to dominate every minute.
What they need is evidence that they can adapt when opponents make the match difficult.
Elite teams win in different ways.
Sometimes they dominate possession.
Sometimes they counterattack.
Sometimes they need to defend for periods before taking their opportunity.
Alonso’s Chelsea need to develop that flexibility.
5. Xabi Alonso Needs to Establish Chelsea’s Identity
This is bigger than one friendly.
Chelsea appointed Alonso because they wanted direction.
The club has assembled an enormously talented squad, but collecting talented players is different from building an effective football team.
Alonso now needs to create an identity.
When Chelsea have possession, supporters should eventually understand what the team is trying to achieve.
When they lose possession, the reaction should become automatic.
When opponents press, Chelsea should know where the escape routes are.
When they reach the final third, attacking movements should become increasingly coordinated.
None of this happens overnight.
But by the final pre-season match, there should be visible progress.
That’s what supporters should watch for against Real Sociedad.
Not perfection.
Progress.
Chelsea’s Confirmed Lineup vs Real Sociedad
Alonso has selected a strong starting XI for his first match in the Stamford Bridge dugout.
Chelsea XI: Sánchez; Fofana, Lacroix, Colwill, Palestra, James (C), Caicedo, Neto, Palmer, Rogers, João Pedro.
Substitutes: Penders, Slonina, Acheampong, Chavarría, Gusto, Hato, Barco, Essugo, Fernández, Lavia, Quenda, Estêvão Willian and Gittens.
The selection provides several interesting clues.
Reece James captains the side.
Caicedo provides the midfield foundation.
Palmer and Rogers offer creativity behind João Pedro.
And Alonso has numerous options available from the bench if he wants to alter the structure during the match.
For Chelsea supporters, however, individual names are only part of the story.
The bigger question is how effectively those players function together.
A Big Stamford Bridge Afternoon for Xabi Alonso
There are no Premier League points available.
There is no trophy on the line.
But Chelsea vs Real Sociedad still matters because it represents Alonso’s final opportunity to assess his team before competitive football begins.
Alonso’s first match in the Stamford Bridge dugout represents an opportunity for supporters to see the direction in which their new manager wants to take the team.
Expectations around Chelsea are growing.
The club has invested significantly in the squad and possesses enough attacking talent to cause problems for almost any opponent.
We have previously asked the larger question in Can Chelsea Really Win the Premier League This Season?.
The answer will ultimately depend on whether Alonso can transform individual talent into a balanced, consistent team.
Chelsea’s final pre-season test won’t provide a definitive answer.
But it can provide clues.
Players to Watch in Chelsea vs Real Sociedad
Cole Palmer
Palmer remains Chelsea’s most important creative influence.
How Alonso positions him — and how much freedom he receives — could tell us plenty about Chelsea’s attacking structure.
Morgan Rogers
Rogers gives Chelsea power and directness.
His combinations with Palmer and João Pedro are particularly worth watching because Chelsea need their attacking players to complement rather than crowd one another.
Moisés Caicedo
Caicedo could be one of the most important players in Alonso’s entire system.
If Chelsea commit numbers forward, somebody has to protect the spaces left behind.
That responsibility could frequently fall to him.
Reece James
Fitness permitting, James offers Chelsea leadership, technical quality and tactical versatility.
His positioning against Real Sociedad should provide another indication of how Alonso intends to use him this season.
What Would Count as a Successful Final Friendly?
Obviously, Chelsea would prefer to win Chelsea vs Real Sociedad, especially in Alonso’s first match in charge at Stamford Bridge.
But the scoreline isn’t everything.
A successful performance would include several encouraging signs:
Chelsea controlling transitions more effectively.
The midfield looking balanced.
Palmer, Rogers and João Pedro creating combinations.
The defence remaining compact.
And most importantly, the players appearing comfortable with Alonso’s tactical instructions.
If Chelsea achieve those things, the manager can enter the Premier League season with greater confidence.
If the same problems continue appearing, there will still be work to do.
Beyond the Final Whistle Prediction
Real Sociedad should provide Chelsea with a useful technical challenge.
The Spanish side possess enough quality to test Chelsea’s organisation, particularly if Alonso’s players become careless in possession.
But Chelsea have named a strong starting XI.
They also have significant attacking quality available from the bench.
With Stamford Bridge welcoming Alonso into the home dugout for the first time, Chelsea should have additional motivation to finish their pre-season programme positively.
Prediction: Chelsea 2-1 Real Sociedad.
The result, however, isn’t the most important thing.
The performance is.
Beyond the Final Whistle Verdict
Chelsea vs Real Sociedad represents the final rehearsal.
Once it is over, the excuses associated with pre-season begin disappearing.
Chelsea have talented players.
They have strengthened the squad.
And they have a manager with a clear football philosophy.
Now those ingredients need to become a team.
Alonso doesn’t need Chelsea to look perfect against Real Sociedad.
But he needs them to look increasingly organised, dangerous and comfortable with his ideas.
Defensive control must improve.
Midfield balance must become clearer.
Possession must produce chances.
And Chelsea’s attacking players need to begin developing the relationships that could define their season.
The Premier League will provide much tougher tests.
This is Chelsea’s final opportunity to prepare for them.
What Do You Think?
What does Xabi Alonso still need to fix before Chelsea’s Premier League campaign begins?
And which Chelsea player are you most excited to watch this season?
Share your thoughts in the comments below.
