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In his post-match interview, Mikel Arteta said: "It's [The result is] very different than how we wanted to start the season.
"We conceded a goal in an isolated action. We didn't cope with the long ball and second ball, and they [Brentford] made it difficult.
"The biggest worry is the threat we had in front of goal. I don't want excuses, honestly. I don't like to hide and analyse excuses."
As for Arteta and co, it's back to the drawing board ahead of a big game against Chelsea next week.
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