Wilshere has identified Morrison as serious competition.
He said: "You have seen the talent there is over the last couple of months - even in the Under 21s with Ravel Morrison and all these players coming through. You are never guaranteed, and cannot rest on your laurels.
"You are only as good as your last game, they say, so when the time comes, I have to be on top form, and there will be a lot of players looking to be as well."
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