Leboeuf told ESPNFC that Chelsea's defensive issues could soon leave new goalkeeper E. Martinez frustrated with his teammates.

Chelsea, newly restructured, lost 1-2 to Arsenal on Sunday. Chelsea squandered an early lead from Morgan Rogers and then couldn't withstand Arsenal's attacking pressure, with Odegaard's performance helping Arsenal secure victory.

Chelsea's new goalkeeper E. Martinez performed well, preventing Arsenal from extending their lead after goals from Havertz and Odegaard. E. Martinez bore some responsibility for failing to protect his near post when Havertz equalized; he was helpless against Odegaard's decisive goal, as Chelsea's disorganized defence left him exposed.

Chelsea have conceded 7 goals in 3 Premier League matches this season. Leboeuf believes the new signing from Aston Villa cannot solve all of the team's defensive problems alone.

Leboeuf said: "He has to get everyone really running, it's a bit chaotic, and the players don't know what to do. I think E. Martinez will very quickly become frustrated. He's not saying anything now because he just signed and probably doesn't want to be rude, but he will soon start shouting at his teammates because it's too difficult."

"Especially Fofana, he doesn't know what to do. On the left, Hato helps him, but Josh Achampong doesn't, he can't rely on Matim Neto, and usually Lavia helps."

"They need to coordinate better and communicate with each other. I think Lacroix should play alongside Colwill, and then do something about the others. The others are a bit lost, perhaps due to lack of experience, perhaps not good enough, or perhaps too young."

"But they have to stick together. If you want to achieve something, you know that. Chelsea have shown that teams that previously won titles all had to defend well, and with that, you can talk about competing for something."

"They are strong in attack, but once they lose the ball, they become very vulnerable. That is where they need to improve. They can threaten any team at any time, but sometimes the match becomes too open, and you can't afford to lose the ball, or you will be in danger."

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