#3 Ilkay Gundogan (Manchester City)
Barcelona have been busy with transfer business ever since Andres Iniesta departed the club last term. After serving the Blaugrana for 22 years, the Spaniard decided to put an end to his Barca career by joining Japanese club, Vissel Kobe in May.
Although Ernesto Valverde has the likes of Paulinho, Sergio Busquets, Philippe Coutinho and Ivan Rakitic to call upon, the manager reportedly wants to strengthen his midfield by signing Manchester City's Ilkay Gundogan this summer.
The German is one of the elite midfielders in the Premier League at the moment. He has great vision, decent passing ability and moves intelligently like Andres Iniesta.
The Catalans will have a great deal if they succeed in signing the playmaker. However they would need to spend up to £50 million to lure the player away from the Etihad.