The Iranian forward will arrive as a Bosman transfer (the ruling allows a player to leave a club on a free transfer as soon as his contract expired) from Porto next month.
Pastorello told TMW: “He is very eager to start, he made a choice many months ago and he will be a wonderful surprise.
“I was the intermediary in the negotiations, he is not my client, but I found an extraordinary boy.
“He will certainly adapt very well, it will be a nice surprise for the fans too.”