Arsenal’s defensive lineup faces significant challenges as the 2026/27 season begins, with centre-back William Saliba sidelined following a back injury sustained during the World Cup. The French defender aggravated a pre-existing condition while representing his country in the tournament’s semifinal match against Spain, forcing him to miss the start of the campaign despite Arsenal’s recent Premier League title victory.
Saliba had endured the back issue throughout the latter stages of last season, pushing through discomfort during both the league’s final matches and Arsenal’s run to the Champions League final. While initial reports suggested he might require up to five months of recovery had he opted for surgery, his decision to avoid the procedure could potentially shorten his absence. Manager Mikel Arteta has confirmed the defender will miss at least until October’s international break, though the exact timeline for his return remains uncertain.
In Saliba’s absence, Arteta will rely on backup central defenders Piero Hincapie and Cristhian Mosquera to maintain the club’s defensive standards. Both players gained substantial playing time last season and demonstrated competence in their roles. Mosquera, positioned on the right side of defence, appeared to hold the advantage for immediate selection, as evidenced by his appearance in Arsenal’s recent Community Shield victory over Manchester City. The club has not pursued defensive reinforcements through the transfer market to cover the void left by their star defender’s injury.
