Wenger led the exercises at Arsenal's training ground in chilly temperatures that forced German international Mesut Ozil to sport a neckwarmer, reports Efe.
At a press conference, Wenger said his focus for Thursday night's clash would be to ensure Arsenal don't concede a home goal to CSKA Moscow.
"Ideally, you want to combine both scoring goals and not conceding, but the situations are not always ideal. But when we play away from home we have the same advantage," he said.
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