7. Thomas Müller
Of all the names on this list, Müller is likely the least realistic transfer to go through. He has become an established regular at his boyhood club Bayern Munich but there are a glut of attacking midfielders in the side which may force his hand. Also consider that Barcelona are rumored to be selling a similar player, right-winger Alexis Sanchez, to Juventus. While Sanchez is a great player who has been in fantastic form this season, Müller would clearly be an upgrade.
While his talent is undisputed, Fabregas has been a luxury for Barcelona this year, being deployed in more of a utility role. Manchester United has been reported to be lining up a £50million bid for the midfielder, which ought to convince Barcelona to sell in order to raise funds for other parts of the squad.
Arsenal has been rumored to be interested in making a move for their former player. If Barcelona could get back 15 million euros for a player whom they hardly use, it would be good business for both sides.
While Barcelona has been in a miniature crisis, there is no need to panic. As other teams throughout Europe have shown, with shrewd spending and intelligent sales, they can be back on top in no time.