Wilshere realises it would be disastrous for the Gunners to begin the campaign by failing to qualify for Europe's top competition.
The first leg is in Turkey on Wednesday, and Wilshere said: "First and foremost I have to stay fit and make myself available - I want to be involved in the big games.
"We have the big Champions League qualifier coming up and we don't want to waste all the hard work we did last year.
"We have got to be up for that and get into the Champions League."
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