1) Juan Cuadrado (Fiorentina)
Not exactly the same kind of player as Alves, but one United have looked at before as an option to come in and play wing-back in a 3-5-2, Juan Cuadrado is quite simply an extraordinary talent. The Colombian winger has been linked with a whole host of top clubs in recent months, Barcelona included as they eye a replacement for Alves, but the Red Devils should do everything they can to snap him up.