Chelsea suffered a 3-0 defeat to Brentford in a west London derby, exposing defensive vulnerabilities under manager Xabi Alonso, who acknowledged the team’s “inconsistency” and lack of competitive mentality after the loss.
Chelsea’s 3-0 loss to Brentford on Saturday laid bare persistent defensive issues, with manager Xabi Alonso admitting the team dropped our consistency and lost our competitive mentality in the second half. The defeat marked Chelsea’s 11th of the 2026 calendar year, surpassing their total from 2025 with three months remaining in the season, according to Sky Sports.
Defensive Issues Laid Bare
Chelsea’s defensive frailty was evident throughout the match, with Brentford scoring three goals, including two from set pieces. The team conceded their fourth goal from a set piece in five Premier League games this season, bringing their total since the start of last season to 23—joint-worst in the league, per Sky Sports.
Defender Levi Colwill acknowledged the team’s struggles, stating, “We tried to push and maybe overexposed ourselves, played some passes we shouldn’t and they hit us on the counter, and got the second goal and the third goal hit home and hurt. We have got all trust in our set-piece coach, but we do need to improve as a team,” according to Sky Sports.
Colwill added, “I don’t think spirit went down. It hurt and we tried to push for equaliser and we got hit on the counter attack. I don’t think our spirit dropped. We still need to improve a lot. We can’t rely on our front three to pull us out of danger. The rest of us have to help as much as possible,” per Sky Sports.
Set-Piece Woes and Managerial Reactions
Brentford 3-0 Chelsea: Defensive issues for Xabi Alonso laid
Brentford’s set-piece strategy was foreshadowed by midfielder Vitaly Janelt, who told Sky Sports, We did target [the back post] at half-time. There was a big gap at the far post. We targeted that and I think it was our first corner of the second half. The tactic paid off, with Brentford capitalizing on Chelsea’s defensive lapses, per Sky Sports.

Alonso admitted the team’s inability to adapt, saying, We concede the first goal, you're still in the game but then we lose the shape. We were out of control.
He also highlighted the need for improvement, stating, We still need to improve a lot. We can't rely on our front three to pull us out of danger. The rest of us have to help as much as possible,
per Sky Sports.
Alonso, speaking to MOTD, said, “Everything was disappointing especially the result but we can do better. We must do better. 45 minutes we were competing well, but in the second half we dropped, and conceded the three goals. You need to be very focused, and once you concede from set-pieces, it gives them an advantage and control because once you concede the second goal it becomes much harder and we lost a little bit of our discipline when we were close to the box. We have to correct, it was our mistakes,” according to Sky Sports.
Broader Context of Chelsea’s Struggles
The defeat added to Chelsea’s ongoing struggles, with the team failing to secure a clean sheet in 22 Premier League games. On average, they concede 2.2 non-penalty goals per game, a statistic that underscores their defensive instability, per Sky Sports.
Chelsea have now lost more Premier League matches in 2026 than they did in the entirety of 2025, according to Sky Sports. The team has also conceded 23 set-piece goals since the start of last season, the joint-worst in the league, per Sky Sports.
Alonso, in his first season at Stamford Bridge, faces the challenge of integrating seven summer signings into a cohesive unit. The absence of Moises Caicedo, who is expected to return, has further complicated matters, with the Ecuadorian midfielder’s absence noted as a concern for the team’s solidity, per Sky Sports.
Brentford 3-0 Chelsea
What Comes Next for Chelsea?

With the international break approaching, Alonso has emphasized the need for improvement, stating, We have a lot to work on in the international break.
The manager’s focus will be on addressing the team’s defensive issues, particularly their vulnerability from set pieces, and instilling a more consistent competitive mentality, per Sky Sports.
Alonso also noted, It's everything but for sure individual and collective details will have to be better, but it's not only defensively, with the ball there are parts where we need to do better,
according to Sky Sports.
For Brentford, the victory solidifies their position as a team capable of challenging top-tier opponents, with their effective set-piece strategy and midfield depth highlighted as key factors in the win, per Sky Sports.
Additional Context
Chelsea’s struggles extend beyond the pitch. Mahdi Nicoll-Jazuli became the first player born in 2010 to play in the Premier League, while he was also the first 16-year-old to play for Chelsea in the competition, per Sky Sports.
Xabi Alonso is only the sixth manager to see his side concede 2+ goals in each of his first five games as a Premier League manager, after Mick McCarthy, Sammy Lee, Terry Connor, Slavisa Jokanovic, and Scott Parker, according to Sky Sports.