New research suggests Chelsea and Everton overpaid for Kepa Arrizabalaga and Yerry Mina
Chelsea experienced a summer of change with Maurizio Sarri taking over from Antonio Conte in the hotseat at Stamford Bridge.
The Blues initially struggled to capture their targets in the transfer market before a late flurry of deals bolstered the 2016/17 champions’ squad.
However, a new study has suggested that Chelsea and their owner Roman Abramovich were held to ransom in making their biggest signing of the summer, Kepa Arrizabalaga.
CIES Football Observatory have revealed that Chelsea paid nearly £40million too much for the Spanish stopper, based on their own unique algorithm.
The research takes into account numerous factors such as former fees, contract length, wages and on-field performances when attributing value to individual players.
That value has then been compared to reported real-world transfer fees to reveal which players were bargains and who paid over the odds.
Arrizabalaga became the world’s most expensive goalkeeper when he joined Chelsea from Athletic Bilbao for £71.6m (€80m), but the 23-year-old only carries a £31.5m (€35.3m) price tag according to CIES.
Yerry Mina joined Everton from Barcelona this summer
25. Kevin Malcuit (Lille to Napoli): Reported €12.5m, Valued €6m – €6.5m
24. Rachid Ghezzal (Monaco to Leicester City): Reported €15m, Valued €8m – €7m
23. Diego Rico (Leganes to Bournemouth): Reported €15m, Valued €7.8m – €7.2m
22. Ibrahim Amadou (Lille to Sevilla): Reported €15m, Valued €7.7m – €7.3m
21. Jean Michael Seri (Nice to Fulham): Reported €28m, Valued €20.2m – €7.8m
CIES data suggests Leicester significantly overpaid Liverpool for Danny Ward
20. Issa Diop (Toulouse to West Ham United): Reported €25m, Valued €16.6m – €8.4m
19. Naby Keita (RB Leipzig to Liverpool): Reported €70m, Valued €61.3m – €8.7m
18. Yves Bissouma (Lille to Brighton & Hove Albion): Reported €19.9m, Valued €11.1m – €8.8m
17. Danny Ward (Liverpool to Leicester City): Reported €14m, Valued €4.8m – €9.2m
16. Juan Bernat (Bayern Munich to Paris Saint-Germain): Reported €17m, Valued €7.2m – €9.8m
Juan Bernat joined Paris Saint-Germain from Bayern Munich on deadline day
Riyad Mahrez will have to shine at Manchester City in order to justify his price tag
15. Benjamin Henrichs (Bayer Leverkusen to Monaco): Reported €25m, Valued €14.1m – €10.9m
14. Riyad Mahrez (Leicester City to Manchester City): Reported €68m, Valued €57m – €11m
13. Alvaro Odriozola (Lille to Napoli): Reported €40m, Valued €28.5m – €11.5m
12. Felipe Anderson (Lazio to West Ham United): Reported €37m, Valued €24.7m – €12.3m
11. Richarlison (Watford to Everton): Reported €56m, Valued €42.8m – €13.2m
Richarlison has hit the ground running with three goals at Everton since his move from Watford
Danny Ings is another example of an inflated Premier League transfer fee this summer
10. Yuri Berchiche (Paris Saint-Germain to Athletic Bilbao): Reported €24m, Valued €9.6m – €14.4m
9. Danny Ings (Liverpool to Southampton): Reported €22.2m, Valued €7.4m – €14.8m
8. Jefferson Lerma (Levante to Bournemouth): Reported €30.5m, Valued €14.9m – €15.6m
7. Abdou Diallo (Mainz to Borussia Dortmund): Reported €30m, Valued €14.9m – €15.6m
6. Joao Cancelo (Valencia to Juventus): Reported €40.4m, Valued €22.7m – €17.7m
Kepa Arrizabalaga was the most overpriced transfer of the summer, according to CIES
5. Javier Pastore (Paris Saint-Germain to Roma): Reported €24.7m, Valued €7.6m – €17.1m
4. Alex Meret (Udinese to Napoli): Reported €25m, Valued €7.1m – €17.9m
3. Yerry Mina (Barcelona to Everton): Reported €31.8m, Valued €13m – €18.8m
2. Thilo Kehrer (Schalke to Paris Saint-Germain): Reported €37m, Valued €17.1m – €19.9m
1. Kepa Arrizabalaga (Athletic Bilbao to Chelsea): Reported €80m, Valued €35.3m – €44.7m