Blues midfielder has old club in his sights.
The Spanish international, who played for the Gunners earlier in his career, is expecting a tough game on Saturday, insisting he and his team-mates cannot sit back and enjoy the 4-0 win over Maccabi Tel Aviv.
“We didn’t start the season well and when you see Chelsea so far down the table you have to check twice to make sure this is happening,” he is quoted in the Daily Star.
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“We have a big game again on Saturday so we must not rest and enjoy this week’s win, we just want to get another win and then we will see what happens.
“We just have to win. It is a London derby, we know Arsenal are a quality team, they play top football and it will be tough but we want to win and we can achieve that on Saturday.”