When coach Ronald Koeman released the final 26‑man list for the 2026 FIFA World Cup, the omission of 24‑year‑old Arsenal defender Jurriën Timber was the quietest shock of the day. Timber’s name did not appear on the roster because a persistent groin injury, which first flared in March, has left him unable to meet the 100 % fitness threshold the Dutch side demands.

Timber has been a regular in the Netherlands’ back line since his senior debut in 2021, known for his versatility, composure and ball‑playing ability. The injury that sidelined him during the latter part of the 2025‑26 club season proved stubborn. Despite an intensive rehabilitation programme, his condition did not improve to the level required before the squad deadline.

A brief return to the pitch came in the UEFA Champions League final on 30 May, where he started against Paris Saint‑Germain and logged 55 minutes before being substituted. The appearance was intended as a test of fitness, but the effort was short‑lived. After a friendly against Uzbekistan in the Dutch camp in New York, the medical staff re‑examined him and concluded that a full recovery was the best long‑term option.

Koeman acknowledged that the Champions League minutes had not helped Timber’s rehabilitation. "You can’t blame the club, and I don’t want to do that either. However, it is clear that those minutes did not help his recover," he said. He added that Timber had been out of shape for an extended period and that his symptoms had not subsided quickly, making him unfit for the demanding World Cup schedule.

To fill the vacancy, Koeman used FIFA’s late injury‑replacement window to call up Sunderland right‑back Lutsharel Geertruida. The Dutch side added Geertruida to the roster on 3 June, following FIFA rules that allow a replacement if a player is injured before the team’s first match.

The Netherlands enter the tournament as one of the favorites, ranked seventh in the world as of 1 April 2026. They will compete in Group F alongside Japan, Sweden and Tunisia. The group matches run from 14 to 25 June, with the Dutch opening against Japan on 14 June. The first two games will be played in the United States, while the third will take place in Canada.

Timber’s absence is a significant loss for the Dutch side. His versatility, composure and ball‑playing skill have made him a key figure in the national team’s defensive setup. The decision to leave him out underscores the coaching staff’s emphasis on fitness and readiness for the tournament’s physical demands.

Geertruida brings experience from the English Championship but has not yet played for the Netherlands. His inclusion will test the depth of the Dutch squad and the coaching staff’s ability to adapt to a sudden change.

The 2026 World Cup, the first edition to feature 48 teams, is being hosted jointly by the United States, Canada and Mexico. The tournament will run from 11 June to 19 July, with matches in 16 cities across the three countries.

With the group stage underway, the Dutch squad’s focus will shift to preparing for the knockout rounds, where the Netherlands will aim to advance beyond the last 32. In summary, the Netherlands have confirmed that Timber will not participate in the 2026 World Cup due to a groin injury that has not fully resolved. The team has added Lutsharel Geertruida as a replacement, and the Dutch will begin their campaign against Japan in Group F on 14 June.