Indonesia faces a major disadvantage, Vietnam's national team sees a bright opportunity to win the AFF Cup.

Numerous key players from Indonesia's national team are likely to be absent from the 2026 AFF Cup because the tournament coincides with European club preseason schedules, creating a substantial chance for Vietnam's national team in their championship defense journey.

Many pillars of the Indonesian national team are highly likely to not participate in the upcoming 2026 AFF Cup due to clashes with the new season preparation schedules in Europe, significantly weakening the strength of the Island nation's squad ahead of the regional tournament.

According to Indonesian media, particularly Bola, a series of stars playing in Europe are almost certain not to be called up or will struggle to return for national team duty. This is a consequence of European club schedules overlapping with the AFF Cup start date, forcing players to prioritize their new season preparations.

Notable names likely to be absent include Jay Idzes and Kevin Diks – two central defenders playing in Serie A and the Bundesliga. Both are considered crucial pillars in Indonesia's defensive system, with stable form and significant influence in the lineup. Their absence is assessed as a serious loss for the defense.

Not only the defense, Indonesia's goalkeeper position is also affected as Maarten Paes and Emil Audero – players active in Europe – are unlikely to join the squad. This forces the coaching staff to rely on domestic players, who lack extensive high-level international experience.

In the forward line, Calvin Verdonk is also a case at risk of absence as he plays in Ligue 1. The lack of this player will weaken Indonesia's attacking power, especially in a context where the team needs breakthroughs in major matches within Southeast Asia.

The loss of numerous stars playing in Europe forces Indonesia to face a serious squad problem at the AFF Cup. Meanwhile, Vietnam's national team and other opponents in the group are seen as direct beneficiaries, opening a greater opportunity in the competition for top spot and deeper advancement in the tournament.