Chelsea has been struggling defensively this season, conceding eight goals in just five matches. The team has struggled to keep their opponents at bay and has faced numerous challenges on the pitch.

The first challenge that Chelsea faces is their lack of experience. Many of their defenders have not played at this level before and are still learning how to play at such a high level. This has led to errors and mistakes being made on the field, which has contributed to their poor defensive record.

Another issue that Chelsea faces is their lack of depth in the defense. With only four defenders in their squad, they have struggled to rotate players and rest them when needed. This has led to fatigue and errors being made by players who have been playing more than usual.

Furthermore, Chelsea's defensive record is not helped by their lack of physicality. Their midfielders and forwards have been involved in tackles and duels, but their defense has lacked the same intensity. This has led to easy goals being scored against them and has made it difficult for them to compete with stronger teams.

In order to improve their defensive record, Chelsea will need to make some changes to their squad. They may need to bring in new defenders or rotate their current ones to get more experienced players into the mix. Additionally, they may need to look towards loan signings or younger players to provide more depth in the defense.

Overall, Chelsea's defensive struggles this season have highlighted the importance of having a strong defense. They must address these issues if they want to continue their push for success in the Premier League.