Pumas UNAM and the FIFA Break Storm: Four Pillars Gone, Esteban Solari Must Rewrite the Jornada 10 Equation

Universidad Nacional — better known as Pumas UNAM — enters the FIFA international break in the position of a team that had just found its rhythm only to be forced to stop. Jornada 10 of Liga MX, where Esteban Solari's men host Atlético San Luis at Estadio Olímpico Universitario, will be played without four of the most important names in the operating system: Álvaro Angulo, Adalberto Carrasquilla, Pedro Vite and Robert Morales. Four men, four countries, four different missions — but sharing the same consequence. Solari must rewrite the squad equation in just a few short training sessions, at a time when the team is still struggling to find connection.

The story is not about who is missing. The crux is timing. A squad crisis that arrives exactly when a team is laying its foundations is completely different from one that arrives when the machine is already running smoothly. For Pumas, this is the worst kind of rupture: a rupture before anything has had time to set.

I have followed Liga MX from late-night bulletins in Incheon, where the time-zone gap forces me to watch matches in the early morning hours the next day. And what I have learned after years of reading Mexican football is not found in the standings table. It is found in the way Argentine coaches — men from a football culture full of controversy yet fiercely pragmatic — confront a compressed calendar.

CONTEXT: A SEASON TORN APART BY THE CALENDAR

Liga MX is famous for the strangest competition system on the planet: two short tournaments in a single calendar year, with FIFA windows wedged in between. This structure creates a paradox in terms of fitness and tactics. A team can play the seventeen rounds of the Apertura in about four months, enter the play-offs, and then immediately pivot to the Clausura without a genuine rest period.

When a FIFA window appears, it does not work like it does in Europe, where leagues can pause with relatively little disruption because most players are used to a dense schedule. In Mexico, the fixture pile-up after the break becomes even harsher. Organizers are forced to cram postponed matches into midweek slots, and Jornada 10 is exactly where that pressure lands.

For Pumas, this carries life-or-death meaning. The blue-and-gold side is in a rebuilding phase under Solari. They have not achieved stability in their starting eleven, they have not shaped a style that runs through every match, and most importantly, they have not had enough time for the four newcomers — those just called up — to integrate into the Argentine coach's tactical structure.

This is the structural tragedy of mid-tier Liga MX clubs. They sign international players — Colombian, Panamanian, Ecuadorian, Paraguayan — to raise the quality of the squad, but in exchange they must accept that their best players will be pulled away at the most important moments. A big club like América or Cruz Azul can rotate without being badly wounded. A club like Pumas cannot.

Coach Solari has admitted frankly that this break falls at an inconvenient time. His remarks are not a complaint. They are the admission of a man who understands the limits of the resources at his disposal. On one hand, he trusts the individuals who will step in. On the other, he knows that any substitution at this stage means trading away the cohesion painstakingly built over weeks.

Pumas have not once fielded their strongest eleven this season. A string of injuries — including Sebastián Córdova, a key creative force, and most recently Álvaro Angulo, who only just returned against Atlas — has forced Solari into constant adjustment. This is not Pumas' problem alone. It is the common syndrome of a league where a dense calendar and a lack of squad depth grind down clubs with limited budgets.

FOUR PILLARS: WHEN PUMAS' MEN DEPART

To understand why the absence of these four players is so serious, one must look at the specific role each plays in Solari's system. This is not simply a team losing four names from the registration list. It is a system losing four links at positions where Pumas have no adequate backup.

Álvaro Angulo, the Colombian full-back, is the most troublesome case. He had only just recovered from injury and returned against Atlas — a match Solari hoped would be the springboard to bring him back to peak condition. Angulo being called up by Colombia precisely during this recovery phase raises a painful question about player load management.

On the left flank, Angulo brings the ability to push forward and join wide combinations — a key element in how Pumas build play from both wings. When he is absent, Solari is forced either to use a backup option or to pull a central player wide, weakening both attacking and defensive capacity in that zone.

Adalberto Carrasquilla, the Panamanian midfielder, is the heart of Pumas' play. He holds the role of connector between defence and attack, and is responsible for dictating tempo. Carrasquilla's presence allows Solari to deploy a possession-based system in midfield. Without him, Pumas must shift to a more direct, longer game that is easier for opponents to read.

For Panama, Carrasquilla is one of the most important players in the push for regional tournament qualification. His call-up is entirely justified on sporting grounds. But from Pumas' perspective, this is an investment the club pays for with its own stability.

Pedro Vite, the Ecuadorian midfielder, is the type of player who provides unpredictability. He can break lines, dribble and create unexpected situations in the final third. In a system that needs creativity — especially with Córdova still treating an injury — Vite is the pressure-relief valve for the advanced line.

Vite leaving to join Ecuador means Pumas lose one of their most important line-breakers. Solari will have to rely on safer players, accepting a reduction in surprise in attacking phases, and hope that patience can stand in for moments of individual brilliance.

Robert Morales, the striker, is responsible for finishing chances. His absence means Pumas lose the ability to capitalize on crosses and through balls. Meanwhile, the pressure to convert chances into goals falls on younger players or lesser-used faces.

It is worth noting that not all four players carry equal weight in the system. But the way these four absences combine creates a thorny problem. Pumas lose, at the same time, an attacking full-back, a controlling midfielder, a creative midfielder and a striker. These are four different player types in four different areas of the pitch. In other words, Solari cannot solve the problem with a single replacement. He must restructure the entire system, at least for one match.

I have spent months tracking how clubs react to these FIFA windows. My experience following Pumas matches shows that this club is especially sensitive to sudden personnel changes. The reason lies in the fact that Solari builds his style on synchronization between lines, rather than on individuals who can settle a match through isolated quality.

SOLARI'S TACTICAL EQUATION

Losing four key men across four zones leaves Solari with two major tactical options. The first is to preserve the structure as much as possible, using backup players in their natural positions, accepting a drop in quality while maintaining cohesion between lines. The second is to change the system, switching to a shape that better suits the available men, trading familiarity for personnel fit.

Both options carry risk. Preserving structure means Pumas take the field with lesser-quality players in important positions. Changing the system means the team must adapt to a style that has not been drilled — extremely dangerous when only a few training sessions precede a competitive match.

In modern football, coaches tend to choose the first option when facing short-term personnel crises. Preserving structure helps a team maintain organization, minimizes the risk of collective errors, and allows backup players to fit into an already-defined framework. This is the approach many Argentine coaches favour, because it reflects the pragmatic philosophy of that football culture.

However, Pumas find themselves in a particular situation. This club has never had a stable structure to preserve. Throughout the season, Solari has had to adjust constantly because of injuries and inconsistent form among his key men. Losing four more players only deepens a problem that already existed.

This raises an interesting question about the nature of coaching. Many believe a good coach is someone who can build a perfect system. But in reality, under Liga MX conditions, a good coach is someone who can build a system flexible enough to withstand continuous personnel shocks.

In midfield, losing both Carrasquilla and Vite creates a massive void in control and creativity. Solari may have to push a defensive player higher, or use a young midfielder untested at this level. Both options carry the risk of losing balance between attack and defence.

In attack, the absence of Morales poses the question of chance conversion. Pumas may still create dangerous situations through wide build-up, but without a sharp enough striker to finish, every effort becomes meaningless. This is a problem many clubs face, and it often leads to matches in which a team plays well but fails to score.

In defence, losing Angulo — who had only just returned from injury — creates an ironic situation. Solari had just regained the player's services after a long wait, and now faces losing him once again. This affects not only the match against Atlético San Luis, but also the club's long-term plan to restore Angulo to peak form.

I remember a line I once heard in a stadium corridor while waiting for a press conference. The stadium corridor taught me one thing: there, a whisper is always truer than applause. What is said in the press room is usually a polished version of the truth. What is whispered in the corridor is what is really happening.

THE FINANCIAL ANGLE: WHEN FIFA BREAKS BECOME A HIDDEN COST

For big European clubs, a FIFA window is a chance for their stars to show class on the international stage, to increase commercial value, and to bring positive image to the club. But for mid-tier Liga MX clubs, the FIFA window means something else entirely. It is a hidden cost that clubs bear without receiving a corresponding benefit.

Look at the financial structure of a club like Pumas. This club operates within a budget framework far more limited than the big sides. They cannot afford a squad of comparable depth. When they sign international players like Angulo or Carrasquilla, they bet that these players will deliver superior value domestically — but they must also accept that these players will be pulled away during international windows.

Economically, this is an unbalanced gamble. The club pays the player's wages all year, yet loses his services at the most important moments without corresponding compensation. Meanwhile, the player's value may rise through national-team performances, but the financial benefit of that rise is only realized if the club sells him — which does not always happen.

The 2026 pandemic shock broke the FFP spreadsheet, but it did not break the relationships built beforehand. That holds true for European football. In Mexico, where financial regulations are far looser, the story is even more complex. Liga MX clubs face financial pressure from many directions: high operating costs, limited revenues, and dependence on international competitions for supplementary income.

Against that backdrop, losing four players in a single FIFA window is not just a sporting matter. It is a matter of investment efficiency. The Pumas board spent money to bring these players in, paid wages for them to play, and now watches them take the field for another shirt. In business terms, this is a poorly efficient allocation of resources, but there is no way to change it because the rules must be followed.

In South Korea, where I live, K-League clubs face a similar problem on a smaller scale. I once built a spreadsheet tracking the entire fixture list of K-League clubs, and what I realized is that international breaks always produce unpredictable consequences. A club can be on a hot streak, then suddenly lose a pillar and collapse for weeks afterward.

THE SILENCE OF CÉSAR HUERTA AND THE MEXICO NATIONAL TEAM STORY

One notable detail in this whole story is that Pumas contributed no player to the Mexico national team. At first glance this sounds like good news — the club does not lose extra men to the domestic national team. But on closer inspection, it is actually a worrying sign.

César Huerta, one of Pumas' most talented players, was expected to be named in Mexico's squad. However, fitness problems in recent weeks led the national-team coaching staff to be cautious. As a result, Huerta was not called up.

For the player, this is a missed opportunity. For Pumas, it is a complex case. The player not going to the national team means he is not affected by international workload, but it also means he has no chance to prove himself on a bigger stage. Psychologically, this can have a negative effect on the player's motivation.

At the same time, having no player called up by Mexico raises a question about the current quality of Pumas' squad. If this club had players of a level to compete for the national team, they would have been called up. Having nobody selected reflects a reality: Pumas lack domestic players of a level to make a difference at the highest tier.

This is a paradox many mid-tier Liga MX clubs face. They depend on foreign players to compete on sporting terms, yet they also need to develop domestic talent to reduce dependence on international players. Balancing these two goals is always a major challenge.

A CONTRARIAN VIEW: COULD THE FIFA BREAK ACTUALLY BE A GIFT?

So far, this analysis has focused on the negative effects of the FIFA window on Pumas. But from another angle, there may be certain benefits that few recognize.

First, the FIFA window creates an opportunity for players with minor injuries to recover. For Pumas, a club that has struggled with injuries all season, a short rest period can help players like Córdova gain more time to recover fully. This is a benefit clubs never get during a dense competitive stretch.

Second, losing four pillars forces Solari to test new options. This can produce surprising discoveries about young or lesser-used players. In the past, many clubs have unearthed hidden talent thanks to awkward situations like this.

Third, the absence of stars can create a stronger sense of collective unity. With no outstanding individuals to lean on, the remaining players must shoulder responsibility and play as one block. This is what coaches often try to build, yet find hard to achieve when the team leans on a few stars.

Fourth, opponents Atlético San Luis may be facing similar personnel problems. Liga MX clubs all suffer from the FIFA window, and Pumas losing four players does not mean they are certain to be weaker. If Atlético San Luis also lose key pillars, the match could be more balanced than many predict.

This leads to a counterintuitive claim: in a league where a dense calendar and thin squads are the common feature, a coach's ability to manage adversity can become the decisive factor. Teams that know how to turn crisis into an opportunity to adjust are often the ones that go far.

Still, it must be acknowledged that these potential benefits are hypothetical. In reality, every team wants its strongest eleven whenever possible. A FIFA window is never something a coach looks forward to, especially when the team is in a search for cohesion.

COMPARISON WITH OTHER CLUBS: LESSONS FROM LIGA MX

To understand Pumas' situation better, one must look at how other Liga MX clubs face the FIFA window. Big clubs like América, Cruz Azul or Tigres enjoy the advantage of squad depth. When they lose a few pillars to national duty, they can replace them with players of nearly comparable quality. This helps them maintain stability in form.

By contrast, clubs like Pumas, Necaxa or Mazatlán face a much bigger challenge. Their limited depth means losing a few pillars can lead to a collapse in results. This is a paradox of the league: clubs with limited resources are the ones most affected by the international calendar.

One notable point is how the K-League clubs I follow face a similar problem. Due to greater financial and squad-size margins, K-League clubs can often rotate more effectively. But when their pillars go on international duty, they too hit the same difficulties. Asian football in general, and East Asian football in particular, is becoming increasingly complex in fixture management.

The Pumas story also reflects a larger trend in modern football: the tension between clubs and national teams. Clubs invest in players, develop them, pay their wages, yet do not always receive cooperation from national federations. FIFA has tried to address this by compensating clubs when players are injured on international duty, but those rules still have many loopholes.

I once had the chance to speak with people working in management at some K-League clubs, and what they shared always stayed with me. They said FIFA windows are always an "invisible fee" that no club wants to pay. But since the rules cannot be changed, they must learn to live with it. Every source is a person, and each of them has their own stories of how they struggle to face challenges that seem small yet deeply affect the outcome of an entire season.

WHAT AWAITS PUMAS IN THE MATCH AGAINST ATLÉTICO SAN LUIS?

The match at Estadio Olímpico Universitario will be a real test of Pumas' ability to adapt. Solari will have to make personnel and tactical decisions in just a few days, while the called-up players are still playing on different continents.

The key is that Solari must decide what his priority is: winning three points at all costs, or using this match as an opportunity to develop backup players and build foundations for the future. Both approaches have their own logic, and which one is chosen depends on the coach's philosophy and the club's specific situation.

If Solari chooses the pragmatic approach — focusing on short-term results — he may use the most experienced players in the current squad, regardless of whether their natural positions fit. This could lead to a tight match with few chances, hoping to capitalize on a moment of individual brilliance for the win.

Conversely, if he chooses the development approach — giving chances to young or lesser-used players — he may accept greater risk in results, while building foundations for the future. This is the approach many coaches pursue when they believe they have enough time to build a long-term project.

In reality, most coaches will try to find a balance between the two. They will use some experienced players to ensure stability, while giving chances to some young players to test them. This is a sensible strategy, but it demands precise judgment about each player's ability.

Whichever path Solari chooses, one thing is certain: the match against Atlético San Luis will reveal a great deal about the true nature of Pumas. It shows whether this club has enough depth to withstand a crisis. It also shows whether Solari has enough ability to manage an adverse situation. Above all, it shows whether the remaining players have enough character to stand up when their senior teammates are absent.

In football, difficult moments like this are often the moments that define a team's identity. A team can crumble when it loses its pillars, or it can grow and become stronger. The answer will be given on the pitch, not in press conferences or in the papers.

MY VIEW ON THIS SITUATION

After years of following football across many different cultures — from Vietnam to South Korea, from Asia to Europe — I believe there is a fundamental principle that all clubs must obey. It is the principle of balance between short and long term.

Pumas are at a point where they must accept that short-term choices can affect their long-term future. Losing four pillars in one FIFA window is one of the challenges they must overcome. But more important is how they respond to that challenge.

There is a trend in modern football for clubs to focus too much on short-term results. They change coaches after a few losses, buy and sell players hastily, and give no one enough time to build something meaningful. This is especially true in leagues like Liga MX, where the pressure for immediate results is enormous.

But the most successful clubs in history are those with long-term vision. They build a philosophy, a structure and a culture. They accept that there will be difficult times, and they stay true to their path.

Pumas have the potential to become such a club. They have a young, ambitious coach (Esteban Solari has only just begun his coaching career). They have talented players in their prime years. And they have a loyal fan base, people who support the club regardless of the results. These factors can form the foundation for a bright future.

But to achieve that, they must be patient. They must accept that a FIFA window — or any other challenge — is not the end of their season. It is just a part of the journey. And that journey has only just begun.

I often think about the stories I have written about transfers, and how they differ from stories about specific matches. Transfers are about the future, about what might happen. Matches are about the present, about what is happening. But both share one thing in common: they are stories about people.

Pumas' four players — Angulo, Carrasquilla, Vite and Morales — are not just names on a call-up list. They are people with dreams, families and their own stories. They are representing their countries, which every player dreams of. At the same time, they leave behind a club that needs them. This is the tension every international player faces, and it is never easy to resolve.

I believe Pumas fans understand this. They know that their players being called up is a source of pride, even when it causes sporting difficulties. They know that international football is the highest stage any player wants to conquer. And they know their club will have to find a way through these challenges.

CLOSING: THE NEXT DOMINOES

When the referee blows the whistle to start the match between Pumas and Atlético San Luis, the question is not only who will win. The question is what face Pumas will show. Will they demonstrate flexibility in adapting to new circumstances? Will Solari prove he can handle adversity? And will the backup players have enough talent and character to seize their opportunity?

The answers will only come after the match ends. But whatever the result, one thing is certain: Pumas will learn important lessons about their team. They will know whether they have enough depth to compete. They will know whether Solari has enough ability to lead the club through tough times. And they will know whether their young players have enough potential to contribute in the future.

The FIFA window will end, and the four pillars will return. But until then, Pumas must live with what they have. And in football, that is something every club must learn to accept. Hasty news will fade. Patient sources always reach the finish line first. For Pumas, the finish line is not the match against Atlético San Luis, but the growth of a team on a journey to find itself.