Barcelona has been one of the most dominant teams in La Liga this season, but their recent performances have raised some concerns. In their last two matches, Barcelona conceded three goals each time, which is a worrying trend that they need to address.

The first match was against Espanyol, where Barcelona dominated possession and had numerous chances to score, but failed to convert them into goals. The second match was against Real Madrid, where Barcelona lost 2-1 despite having more shots on target than their opponents.

These results highlight the defensive challenges that Barcelona faces, especially when they face stronger opponents. The team needs to improve their defensive performance if they want to maintain their position at the top of the table.

One of the main reasons for Barcelona's defensive struggles is their lack of consistency. They have shown flashes of brilliance in certain games, but then struggled in others. This inconsistency can be attributed to a number of factors, including fatigue, injuries, and poor decision-making from the defense.

Another issue is the lack of depth in the team's defense. Barcelona relies heavily on their star players, such as Lionel Messi, Luis Suarez, and Neymar, to provide the necessary attacking threat. However, these players are also responsible for providing cover for the defense, which means that the team's defense is not as strong as it could be.

To address these issues, Barcelona will need to focus on improving their defensive tactics and building a more solid defense. They should also work on developing a deeper bench that can step in when needed, and ensure that all players are fit and ready to perform.

In conclusion, while Barcelona's defensive struggles may seem concerning, there are still ways for them to improve. By addressing their weaknesses and working on building a more solid defense, they can continue to dominate the league and maintain their position at the top.