Juve splashed out £60m to sign the Italy international from Fiorentina.
“He is a real talent, but there is too much pressure on him created by the transfer market," former Juventus midfielder Marchisio told La Gazzetta dello Sport.
“It's not right that someone like him, who was fighting relegation in Florence, should cost €50-60m. Then he arrives at a club like Juve and has to immediately prove himself: with different transfer figures, it'd be easier for a young player in that situation.
“He needs to find the right position on the field, but in my view, he will explode and become a star."