6) Mats Hummels (Borussia Dortmund)
One of the most talked about transfer targets of last summer, Hummels eventually elected to remain with Dortmund, and has surprisingly endured a miserable season, battling against relegation. Still, a world class defender, and one that would make a worthy signing for any team.
5) Alexandre Lacazette (Lyon)
One of the hottest properties in European football right now, the Frenchman just cannot stop scoring. He’s scored 24 goals in 24 games so far this season, and has scored in every game he’s played in since the end of November! How much will he be worth come July?