
With the transfer window now firmly shut across the Premier League, LaLiga, Ligue 1, Serie A, and the Bundesliga, fans can now sit back and take stock of their club’s summer business.
Among the sometimes unbelievable sums of money spent across Europe this summer was some excellent value. We have previously covered the 10 best value transfers in 2018.
However, on the other hand, there were some transfers which made you blink, rub your eyes, and double check to ensure you weren’t dreaming. It is those transfers which we cover in this feature.
We have correlated data from transfermarkt.com with actual fees paid for players throughout the transfer window to reveal the 10 most overpriced transfers of 2018 below.
#10 Willem Geubbels

Market Value: €6 million
Transfer Fee: €20 million
Difference: €14 million
France under-18 international has caught the eye with his performances in the Lyon B team last season. The forward earned a call-up to the Lyon first team for two games last season – one in Ligue 1 and one in the Europa League.
While Monaco has a reputation for developing talent, such a large transfer fee for a young and generally untested player is a big risk. Time will tell if it was value for money or cash down the drain.
#9 Richarlison

Market Value: €25 million
Transfer Fee: €39.2 million
Difference: €14.2 million
This is an extraordinary fee for a player who is yet to earn an international cap with Brazil and has played just one full season in the Premier League. His slump during the second half of last season also raises questions about paying €14.2 million over market value for the 21-year-old.
Time will tell if the money paid by Everton is good value or not, but for now, Richarlison is one of the most overpriced transfers of the summer.
#8 Kylian Mbappe & James Maddison

Kylian Mbappe
Market Value: €120 million
Transfer Fee: €135 million
Difference: €15 million
When discussing value for money there are many factors at play and as Mbappe is a very young player with a World Cup winner’s medal to his name already, this transfer is perhaps not such bad business for the Parisian club.
James Maddison
Market Value: €10 million
Transfer Fee: €25 million
Difference: €15 million
The attacking midfielder had impressed in the Championship last term and Leicester made him one of their main summer transfers by forking out €25 million for his services. The fee is a huge €15 million more than the 21-year-old’s current market value.
#7 Abdou Diallo

Market Value: €12 million
Transfer Fee: €28 million
Difference: €16 million
Having spent a season at Mainz 05, the 22-year-old impressed throughout his 27 appearances for the club and made the move to Dortmund to continue his development. The France Under-21 captain is certainly a towering presence in defence and has a lot of potential but paying €16 million more than market value for any player is a huge risk and adds pressure to his performances.
#6 Cristiano Ronaldo

Market Value: €100 million
Transfer Fee: €117 million
Difference: €17 million
The fact that the 33-year-old can still command such a high fee tells you everything about his marketability and playing level. However, his transfer market fee stands at €100 million, meaning Juventus paid €17 million more than what he is currently worth.
#5 Riyad Mahrez

Market Value: €50 million
Transfer Fee: €67.8 million
Difference: €17.8 million
The Citizens already boast an embarrassing array of riches in Mahrez’s position and would have been better off focusing on a new defensive player either in midfield or their backline. To pay €17.8 million over market value for a player who will not automatically be in the first XI feels like a demonstration of financial power by the Manchester club and little else.
#4 Thilo Kehrer

Market Value: €18 million
Transfer Fee: €37 million
Difference: €19 million
Thilo Kehrer made the move from Schalke 04, where he came through the youth ranks, to Paris this summer for an extraordinary fee of €37 million. The 21-year-old impressed over the past two seasons in the Bundesliga, notching up 44 appearances and four goals for Schalke 04.
#3 Jefferson Lerma

Market Value: €2 million
Transfer Fee: €28 million
Difference: €26 million
Jefferson Lerma had spent the last couple of seasons at Levante in LaLiga playing at a decent level. However, his market value of just €2 million demonstrates that he is a very standard defender with nothing particularly special about his style of play.
#2 Fred

Market Value: €32 million
Transfer Fee: €59 million
Difference: €27 million
The 25-year-old had impressed during his five-year stint in Ukraine with Shakhtar Donetsk, leading to the Red Devils forking out a huge €59 million for his services during the summer. However, with options including Ander Herrera, Andreas Pereira, and Marouane Fellaini providing competition for Paul Pogba and Nemanja Matic, perhaps it is a signing which wasn’t necessarily required.
#1 Kepa Arrizabalaga

Market Value: €20 million
Transfer Fee: €80 million
Difference: €60 million
Fans who do not follow LaLiga had probably never heard of Kepa, but Thibaut Courtois’ move to Real Madrid forced Sarri’s hand and he went straight for the 23-year-old Spaniard. The transfer fee ensured that the world record paid for a goalkeeper was broken twice in the same summer after Liverpool had bought Alisson becker a few weeks earlier.