Pogba returns to United a World Cup winner with France.
And LA Galaxy striker Ibrahimovic says: "I played with him for two years and people like to give their opinion, which they have the right to do.
"They judge but I think the result speaks for itself.
"You don't need to answer by your mouth, you can answer by your feet, and do what you are good at. That is the way it is supposed to be and the way I like to do it.
"He is young. He won the World Cup, he was in the Champions League final (with Juventus), the Europa League final (with United), the European (Championship) final (with France) - and he won many titles at Juventus.
"What more is there to say? Just enjoy the games and I know he will become better."