Kylian Mbappé was diagnosed with hyperextension of the posterior capsule of his left knee, according to the medical report published by Real Madrid on 26 September 2026. The club said only that his condition remained “pending evolution”; it set no return date. As of 29 September, the available official sources are also insufficient to establish how many matches he actually missed. They confirm the injury, France’s win over Türkiye and the subsequent match against Belgium, but the report on the latter is a round-up rather than an official match sheet and contains no line-ups.

Direct answer: what has been confirmed
The Real Madrid medical report says that tests performed on Mbappé identified hyperextension of the posterior capsule of his left knee. That is the official medical wording that can be reported safely.
The statement gives no severity, treatment plan, required period away or expected return date. “Pending evolution” means the condition was still to be monitored; it cannot be converted into a number of days or matches out. Any further forecast would require a later official update.

How UEFA reported the injury
In its Nations League Matchday 1 round-up, updated on 26 September, UEFA records Türkiye 0–1 France. Michael Olise assisted Mbappé’s 54th-minute goal. UEFA adds that the France captain picked up an injury during the move.
UEFA identifies Mbappé as France’s captain but does not provide the full line-up. Its account documents the goal and injury; Real Madrid’s statement adds the diagnosis after tests.

Documentary timeline since 26 September
26 September: UEFA’s Matchday 1 round-up says Mbappé scored France’s only goal in Türkiye and was injured in the process. It identifies the strike as his 67th goal for France.
26 September: after tests, Real Madrid publishes the diagnosis of hyperextension of the posterior capsule of the left knee and makes any conclusion dependent on the player’s evolution.
28 September: UEFA updates its Matchday 2 round-up, reporting France’s 1–0 victory over Belgium. Michael Olise scores in the 88th minute after an individual run.
Which matches did he actually miss?
The Matchday 2 round-up confirms Belgium 0–1 France and describes the principal incidents, but it does not provide the line-ups, substitutes or an appearance record for every player. Mbappé’s absence from that narrative does not, by itself, prove that he missed the match. Likewise, UEFA’s general fixtures and results page does not provide, in the available content, an individual match record that resolves the question.
How to follow a reliable update
A later confirmation should clearly identify who published it, on what date and what new fact it adds: participation in training, inclusion on a match sheet, formal unavailability or a new medical assessment. Until then, the reliable position remains limited to the 26 September diagnosis and the lack of an official return date.
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Sources and credits
- Bryan Berlin — CC BY-SA 4.0
- Bryan Berlin — CC BY-SA 4.0
- Russian Presidential Press and Information Office — CC BY 4.0
- UEFA — résumé officiel de la 1re journée de Ligue des nations, URL candidate fournie par la rédaction
- UEFA — calendrier et résultats officiels de la Ligue des nations
- UEFA — résumé officiel de la 2e journée de Ligue des nations, URL candidate fournie par la rédaction
- Real Madrid — boletim médico de Kylian Mbappé de 26/09/2026
- UEFA — datas e resultados oficiais da fase de liga 2026/27