He said: "I know him quite well, I played against him a few times in the youth team at Manchester United and you could always tell back then he had something special.
"It was a bit of a surprise when he left but he has obviously made a great name and career for himself.
"He is a special talent and the Premier League is a better place now he is in it."
Wilshere's manager Arsene Wenger has also backed Pogba's arrival despite the world record fee.
He told Sky Sports: "The value of a player is dependent on his talent, the expected strengthening of the team, his age and of course his resale value.
"When you speak about Pogba it ticks all these boxes – but we are in a system that we don’t master.
"We have to follow the prices paid by other people. That has gone up because the available of money is much higher. That’s why we've crossed the £100m bar for the first time."
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