Defensive Midfielder: Fabian Ruiz (Spain) - €45 million

An underrated operator in Napoli's swashbuckling team, Fabian Ruiz has started every game of their unbeaten domestic campaign. He has contributed five goals (scoring thrice, assisting twice).
The Partenopei has raced to ten wins from their opening 12 games in their Serie A campaign. The Spaniard's vision, passing and ball control have been key to their blistering start.
Yet it's odd that Luis Enrique didn't feel compelled to reward the star with a national team call-up for his rich vein of form.
Defensive Midfielder: Tanguy Ndombele (France) - €45 million

Tottenham Hotspur are having a torrid campaign on all fronts. So new manager Antonio Conte has a huge task on his hands, which includes reviving some players, such as Tanguy Ndombele.
A talented young prospect with the potential to become a star, Ndombele has been far too inconsistent. He hasn't helped much with the team's lack of creativity, and is running out of time to prove himself.