2. Mats Hummels
Dortmund centre-back, Mats Hummels is one of the most recognised defenders in modern football at the moment. A few years ago, fans in England knew very little about the player but with the reputation of German football on the rise, Hummels is now widely known as one of the best in the business. At just 24-years-old he has already established himself as a dominant defender who can play on a world stage.
Hummels started 28 Bundesliga games last season for Dortmund as well as featuring in eleven European games. The German defender is being tipped as a key man for his national team and with Hummels already possessing plenty of experience playing for his country, he could well lead Germany to victory at some point in his career. With Dortmund already having lost
Mario Gotze to rivals Bayern Munich and with
Robert Lewandowski set to being leaving the club, it is unclear how much Hummels would cost but it is likely that the defender would cost a lot more than £20 million.