They beat Everton 4-1 at Goodison Park, a ground that had seen them lose four of their previous seven visits, and where they are always given a severe physical examination.
Wenger said: "We battled, we had to. Last season here, Everton played a very physical game and they were very direct. And we lost. I can understand that they repeated this tactic. This time we won, but it was very close."
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