Man City paid £25million too MUCH for winger Riyad Mahrez this summer, according to a new study.
It also suggested Chelsea were also hard done by in their transfer business with the club losing out in their deals for both Kepa Arrizabalaga and Thibaut Courtois.
The CIES Football Observatory revealed the club-record £60m City forked out to bring Mahrez to the Etihad from Leicester was well over his market value.
The Algerian made 36 Premier League appearances for the Foxes in 2017-18, notching up 12 goals and ten assists.
Only Mahrez, Mohamed Salah, Christian Eriksen and Manchester City pair Leroy Sane and Raheem Sterling reached double figures for both last term.
But the study valued his £60m price tag £25m above his actual value, around £35m.
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Chelsea received just £38m from Real Madrid for goalkeeper Courtois who went AWOL from the club after the World Cup.
This was valued at the best saving for a buying club, who according to CIES Football Observatory paid £20m less than what they should have done.
And while Courtois was the worst-priced sale in the transfer window, Arrizabalaga was the worst-priced purchase.
The study believes that the Blues paid a whopping £40m too much for the Spanish stopper, who was brought into Stamford Bridge for £71.6m from Athletic Bilbao.
Among the other notable good pieces of business by buying clubs, Arsenal paid less than the estimated value for Lucas Torreira.
The Gunners parted with £27m to sign the Uruguayan but should have paid an extra £10m while Juventus should splashed out £103m on Cristiano Ronaldo, not £99m.
Liverpool did some of the best business, spending less on Fabinho and Alisson than expected but it’s bad news for Everton and West Ham.
The Toffees are thought to have overspent on Yerry Mina and Richarlison while the Hammers did likewise for Felipe Anderson and Issa Diop, their two record signings.
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