#2 Samuel Umtiti - €60 million

Umtiti was signed from Lyon for €25 million and has proven to be one of Barca's best signing in a long time.
An indispensable part of the Catalan side's defence, the 24-year old defender has been one of the most consistent players in the team, with his strong tackling, decision-making, and positioning.
He is also very capable on the ball, averaging a 92% passing accuracy this season, impressive stats for a centre-back.
All this, and he has a €60 million release clause. This fee may seem high, but for a young, potentially world-class player who is crucial for both his club and national team, €60 million is an absolute steal. As a result, FC Barcelona's main priority right now is to renew his contract.
It is unlikely that he will move clubs anytime soon, but any club that gets him for his release clause would be very lucky to get a player of his quality for such a low price.