5 current squads with the biggest market value increase 

#1 Barcelona - €556.76 market value differential

Barcelona has the most valuable squad in the world

Squad Purchases: €664.24 million

Squad Value: €1.22 billion

Difference: €556.76 million

The third La Liga club on this list, Barcelona boast the most valuable squad in the world at present with their players worth well over €1 billion combined. Of course, a huge contribution to their topping of this list is the presence of the most valuable player in the world, Lionel Messi. Valued at €180 million, Barcelona didn't pay a cent for his signature.

However, it isn't just Messi that places Barcelona at the top of the pile. Their youth development record is exceptional with players such as Sergio Busquets and Sergio Roberto worth €80 million and €55 million respectively having come through the youth ranks at the Nou Camp.

The Catalans also have an eye for spotting cheap talents such as Jordi Alba who was purchased for €14 million and is now worth €60 million, Samuel Umtiti who was purchased for €25 million and is now worth €70 million, and Marc-Andre ter Stegen who was purchased for €12 million and is now worth €60 million.

While their lavish expenditure on players such as Phillipe Coutinho and Ousmane Dembele is highly publicized, Barca remains experts and spotting value and developing players.