Chelsea Faces Defensive Crisis with Injuries to Anselmino and Sarr

Aaron Anselmino left the pitch in tears, his face buried in his shirt, and with him went a sizeable slice of Chelsea’s early-season optimism.

Barely half an hour into a pre-season friendly at Stadium Sultan Ibrahim, the 21-year-old centre-back pulled up, clutched his hamstring and stayed down. The body language told its own story. He lay on the turf, furious, thumping the grass as the physios worked over him. When he finally rose and hobbled off, team-mates closed in around him, offering pats on the back that felt more like condolences than encouragement.

For a player whose Chelsea career has barely begun, it already feels worryingly fragile.

Anselmino, who arrived in 2024 after spells with Borussia Dortmund and Strasbourg, has carried a medical file far thicker than any young defender would want. Similar fitness problems have stalked him since he walked through the doors at Stamford Bridge, and this latest hamstring issue threatens to push him further from Enzo Maresca Alonso’s first-team picture just as the new manager starts to shape his defence.

A nightmare before kick-off

The afternoon had already gone wrong for Alonso before a ball was kicked.

Mamadou Sarr, the 20-year-old centre-back pencilled into the starting XI, was forced to withdraw during the warm-up. One moment he was going through drills, the next he was heading down the tunnel, leaving Chelsea’s staff scrambling to reshuffle at the back before the friendly had even begun.

Two promising centre-backs, both 21 or under, gone within the space of an hour. In pre-season. In a squad where Alonso was counting on youth and depth to plug the gaps left by a summer of spending in other areas.

Chelsea’s hierarchy knew transfer funds were tightening after heavy investment across the pitch. The plan was clear: trust the stable of young central defenders, rotate them, develop them, and avoid another expensive foray into the market. That blueprint now looks far more fragile. Losing Sarr in the warm-up and Anselmino before half-time doesn’t just disrupt one game in Johor; it forces a rethink of the entire defensive strategy.

Chaos on the touchline, cracks on the pitch

The drama was not confined to the treatment room.

On the touchline, tensions boiled over after a heavy challenge on Liam Delap. Chelsea’s new set-piece coach, Austin MacPhee, reacted furiously, charging towards the opposition bench. Alonso had to physically restrain him, dragging him back as tempers flared and staff from both sides converged near the technical area.

It was an ugly flashpoint in what was already an erratic contest.

On the pitch, the 3-3 draw laid bare the tactical teething problems Alonso is trying to iron out. Delap kept Chelsea in the game from the spot, his penalties providing a sharp edge in attack. Yet every step forward in the final third seemed to be matched by a stumble at the back.

Defensive lapses, poor positioning, loose concentration – the kind of mistakes that managers can tolerate in July but cannot ignore. The goals conceded felt soft, the structure brittle. With each opposition attack, the absence of Anselmino and Sarr loomed larger.

A revolution tested early

Pre-season is supposed to be about rhythm, patterns of play, and fitness. For Chelsea, it now feels like triage.

As the squad heads back towards Stamford Bridge, the centre of gravity shifts from the training pitch to the medical department. Scans, rehabilitation plans, contingency meetings – the quiet rooms at Cobham will decide as much about Alonso’s first campaign as any tactical tweak.

The brief handed to the new head coach is brutal in its simplicity: return Chelsea to the Champions League. That task already looked demanding in a league where the margins at the top are shrinking. Now, before a competitive ball has been struck, Alonso is staring at a defensive shortage, a bruised back line and a fanbase already haunted by the image of a young defender in tears on a distant pitch in Malaysia.

The season hasn’t started yet. The adversity has.