10. Paul Pogba (€105 million)
Entering into our countdown purely with regards to economics, the acquirement of Paul Pogba by Manchester United, could potentially turn out to be a huge blunder. How many goals does one needs to create or score in order to live upto that amount? Not everybody can score goals at will like Messi or Ronaldo. In contrast, Zlatan’s transfer could be the best thing that happened to Mourinho this season. Sure, Pogba is starting to regain his lost form slowly at United, but for a 23 year old, being the world’s most expensive player could be the worst thing to happen in your career.