The 20-year-old has chosen to head to Spain after being told his first-team opportunities would be limited at Old Trafford by Jose Mourinho.
Pereira has been continuously tipped for a big future at Man United and hopes are his loan move will allow him to develop as a player so he can slot right back into the United midfield.
He has made 14 first-team appearances for United and has looked at home on the senior side, showcasing plenty of talent on each showing.
Mourinho has done brilliantly to get his squad in order ahead of the new season, he has brought in plenty of new talent but has also found loan moves for youngster who wouldn’t have the chance to play at Old Trafford this season.
Pereira has an insane amount of ability and hopes are he is able to sharpen his skills with Granada before he returns to United.