See which teams did the best transfer business this year by comparing the amount teams paid for players compared with their theoretical value.
The Football Observatory, an independent think-tank which analyses transfers across global football, has published its latest data on the value of the world’s top players.
By comparing how much a player is worth compared with how much a team paid for them, we can see whether a team got good value or not.
Goal compared the summer’s most expensive transfers with the value calculated by the Football Observatory, and came up with some pretty interesting findings.
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10) Eliaquim Mangala – FC Porto to Manchester City
Paid: €52.8 Real Value: €19
OVERPAID BY €33.8m
9) Luis Suarez – Liverpool to fc Barcelona
Paid: €81m Real Value: €48m
OVERPAID BY €32m
8) James Rodriguez – AS Monaco to Real Madrid
Paid: €80m Real Value: €50m
OVERPAID BY €30m
7) David Luiz – Chelsea to Paris Saint-Germain
Paid €50m Real Value: €24m
OVERPAID BY €26m
6) Angel di Maria – Real Madrid to Manchester United
Paid: €75m Real Value: €57m
OVERPAID BY €18m
4=) Luke Shaw – Southampton to Manchester United
Paid: €44.7 Real Value:€33m
OVERPAID BY €11.7m
4=) Juan Mata – Chelsea to Manchester United
Paid: €44.7m Real Value: €33m
OVERPAID BY €11.7m
3) Alexis Sanchez – FC Barcelona to Arsenal
Paid: €40m Real Value: €61m
UNDERPAID BY €21m
2) Cesc Fabregas – FC Barcelona to Chelsea
Paid: €37 Real Value: €62m
UNDERPAID BY €25m
1) Diego Costa – Atletico Madrid to Chelsea
Paid: €44m Real Value: €84m
UNDERPAID BY €40m