4) Adriano
A talented and versatile full-back, Adriano could prove a very useful signing for Liverpool this summer as they eye signings at both right-back and left-back. The 29-year-old Brazilian has been a highly effective squad player for Barca during his time at the club due to his ability to play in so many positions, and he has often shone with some memorable goals from the back and overall impressive attacking play. Liverpool have been linked with the player before, and it would make sense to try to sign him now as Barcelona step up their interest in Suarez. Although this would not address the gaping hole left in Liverpool’s attack, it would still surely prove a good addition for their squad as they try to improve in various other areas for next season.