Arsenal confirmed Wednesday that defender William Saliba will miss an extended period due to a back injury [1].

The loss of the 25-year-old [2] creates a significant void in the Gunners' defensive line as the club prepares for the upcoming season. Saliba is regarded as a cornerstone of the team's back four, and his absence forces the coaching staff to restructure their defensive strategy.

The injury occurred during France's World Cup semi-final match in the U.S. [3]. According to the club, Saliba suffered a chronic back problem during the high-stakes fixture [4]. The player returned to London following the conclusion of the tournament, where the full extent of the damage was assessed by medical staff [1].

Arsenal said that Saliba will avoid surgery [1]. Instead, the center-back will enter a lengthy rehabilitation programme designed to restore his fitness and mobility [1]. This conservative approach aims to ensure a more sustainable recovery, though it confirms he will be unavailable for the immediate future [5].

Saliba's condition highlights the physical toll of the 2026 FIFA World Cup, particularly for players who progressed to the final stages of the tournament [1]. The club has not provided a specific date for his return, noting only that the recovery period is extended [5].

William Saliba will miss an extended period because of a back injury.

The decision to forgo surgery in favor of a rehabilitation program suggests the injury is chronic rather than acute, requiring a gradual return to peak physical condition. For Arsenal, losing a primary center-back before the season begins may necessitate an emergency transfer or a reliance on unproven depth in the defensive line.