Arsenal legend Bob Wilson feels Jack Wilshere will be key to any success in Barcelona this week.
Former Arsenal keeper Wilson, 69, has been impressed by the young midfielder and is backing Arsene Wenger's men to win in the Nou Camp.
He said: "Wilshere is a big talent with a strong heart and he loves the club. I see lads like him and I see a bright future for Arsenal.
"We are leading against Barcelona after the first leg. However hard the second game may be, we are in a good position."
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