Xabi Alonso could barely conceal his frustration after Chelsea’s 3-0 defeat to Brentford, lamenting, "You need to feel it. We're not feeling it." The sentiment captures a familiar sense of helplessness that has settled over the club. This loss marks Chelsea’s eleventh defeat of the calendar year – a tally that already exceeds the total they will have by the end of next year, with three months still left in 2026. It also continues a worrying pattern: for the fifth consecutive Premier League match under Alonso, the Blues have allowed at least two goals, and their set‑piece vulnerabilities have resurfaced with alarming regularity.

Alonso himself admitted that the team’s consistency and competitive edge evaporated in the second half, a shortcoming that will undoubtedly alarm supporters. Brentford seized the initiative after the break, turning a tightly contested first half into a one‑sided affair. The match also highlighted another persistent issue: Chelsea are being out‑battled across the pitch. Last season they were often out‑run; this season they are being out‑muscled, a trend that underscores a deeper defensive frailty.

Set pieces have become a recurring nightmare for the club. The opening moments of the Brentford game reminded everyone of the importance of dead‑ball situations – long throws, well‑timed corners, and clever routines. Yet, just as they had against Hull City a week earlier, Chelsea surrendered control by conceding yet another set‑piece goal.

In fact, this was the fourth goal they have allowed from a dead‑ball in just five league fixtures, pushing their total since the start of the previous season to 23 – the joint‑worst figure among all Premier League sides. The decisive goal came when a cross was delivered straight to the back post, landing on the head of goalkeeper Emiliano Martínez. Neither he nor the defending outfield players could react in time, and Brentford’s attackers were already anticipating the delivery.

Vitaly Janelt later explained to Sky Sports that the Bees had specifically targeted the far post at halftime, noting a noticeable gap that they exploited early in the second half. Despite employing Austin MacPhee, who is widely regarded as the league’s most effective set‑piece coach, Chelsea have been unable to rectify the problem.

Even Bernardo Cueva, the former set‑piece specialist who now occupies a different role at the club, was poached by Brentford during the match. Levi Colwill echoed the frustration, telling Sky Sports, "We have not been good enough, at times we have been bullied and we need to improve at that." He added that the team still trusts the new dead‑ball coach, but emphasized the need for collective improvement. The set‑piece dilemma is only one facet of Chelsea’s defensive crisis.

The club’s ability to prevent opponents from infiltrating the final third is among the poorest in the division. They have now gone 22 straight Premier League games without keeping a clean sheet, a streak that reflects both tactical and psychological shortcomings. On average, Chelsea concede 2.2 non‑penalty goals per match, a figure that aligns closely with their expected goals‑against (xGA) metric, indicating that the opposition’s quality of chances is indeed high. Compounding the issue is Chelsea’s failure to protect their own penalty area.

They rank in the top three for the number of shots allowed inside the box, conceding roughly ten such attempts per game. This relentless pressure forces the goalkeeper into a reactive, almost sacrificial role, as the defense repeatedly leaves gaps for opponents to exploit. These defensive statistics help explain why Chelsea have struggled to maintain leads in their last three league outings. They often start brightly – this was the first Premier League match of the season where they failed to take the lead within the opening ten minutes, though they came close when Pedro Neto’s effort was saved.

However, once they fall behind, the team’s composure collapses. Alonso summed it up succinctly: "We concede the first goal, you're still in the game but then we lose the shape. We were out of control." The return of Moisés Caicedo could provide a much‑needed boost to the midfield’s defensive stability, but his absence has highlighted how vulnerable the side is without his ball‑winning presence. Two of the summer signings, Jordan Henderson and Valentin Barco, started against Brentford, yet the Bees displayed greater cohesion and strength in midfield.

Brentford manager Keith Andrews appears to have deeper quality in that area, as evidenced by the 3‑0 victory despite record signing Mamadou Sangaré spending most of the match on the bench. In attack, João Pedro emerged as Chelsea’s most influential scorer, but even his contributions could not prevent a goalless night – the first time this season that the Blues failed to find the net. The match also marked the first occasion this campaign that the ‘JP Morgan’ front line was dismantled, exposing the lack of balance across the squad. Patience is essential for Alonso, who inherited a team with seven new signings in the starting eleven and is only the fourth manager to lead the club in nine months.

Former captain Gary Cahill reminded the media that transformation does not happen instantly: "It doesn't happen overnight. I think with what you're saying he will be judged in the next five, six, seven weeks to get this right because you will have that time on the training ground and then we should start to see his methods coming through because we've seen him in an attacking sense." Alonso himself broadened the scope of the required improvements beyond set pieces, emphasizing defensive duels, build‑up play, and overall game control. He admitted that these four areas – set pieces, duels, build‑up, and control – are the core pillars that need reinforcement.

Levi Colwill echoed the sentiment after the international break, insisting that the squad has “a lot to work on.” In summary, Chelsea’s recent performance against Brentford laid bare a series of systemic defensive problems: a lack of consistency, poor set‑piece defending, an inability to protect the penalty area, and a tendency to lose shape after conceding. While the arrival of specialists like Austin MacPhee and the potential return of key midfielders such as Caicedo offer hope, the club must address these issues holistically if they are to reverse the current downward trajectory and restore confidence among their fan base.