Arsenal have confirmed that central defender William Saliba will be sidelined for an extended period following a back injury sustained during the FIFA World Cup 2026.

The club released a statement on Wednesday confirming Saliba returned to London this week from international duty, where he played a key role in France's run to the semi-finals. Specialist assessments carried out upon his return have confirmed the back injury diagnosis.

In positive news for Arsenal and their supporters, the club confirmed that surgery is not required. Instead, Saliba will begin a managed rehabilitation programme immediately, with the medical team providing continual oversight of his recovery.

Saliba's tournament ended prematurely when he was substituted in the 30th minute of France's World Cup semi-final defeat to Spain — a match that proved to be his last of the competition.

"William Saliba has returned to us from World Cup duty, where he played an integral role in France reaching the semi-finals of the competition. Subsequent specialist reviews on William's return to London this week have confirmed that he has suffered a back injury which will require a period of rehabilitation. Extensive assessments have concluded that surgery is not recommended, but William should now commence a managed recovery programme. Everyone is fully focused on supporting William to ensure he is back to full fitness as soon as possible."

The club did not provide a specific timeframe for Saliba's return, describing only that he is expected to be absent for an extended period. Arsenal will be without one of their most important defensive figures as they prepare for the upcoming season.