2. Enzo Perez
The Argentine is like a breath of fresh air in the midfield and Benfica would certainly charge more if he is sold after an impressive World Cup. Manchester United are already interested and a move to the club is imminent if Van Gaal gives the go ahead. Perez is one of the targets of United and they may have to pay a lot for him after the completion of the cup. The faster the deal, the better for United to have more say in the negotiations.