According to the Football Observatory, Roma undersold Mohamed Salah to Liverpool and Antonio Rudiger to Chelsea.
They used their algorithm to calculate the gap between amount paid and value estimated, which this season showed that inflation is accelerating in the transfer market.
Kylian Mbappé was easily the most over-paid player, as he cost €180m for Paris Saint-Germain, but the value of the Monaco player was objectively €92.6m.
With these calculations, there were three undersold players in the 20 most expensive transfers of the summer and two of them were from Roma.
Salah was sold for a club record €50m, but Liverpool should’ve paid closer to €69.4m, according to the Football Observatory.
Similarly, Chelsea shelled out €39m for Rudiger when he was valued at €54.2m.
Meanwhile, Roma paid €21m more than was necessary for Sampdoria striker Patrik Schick, as he was valued at €21m and the Blucerchiati pocketed €42m.
Davide Zappacosta was overpaid by €18.2m by Chelsea from Torino, while Inter paid €16.3m too much for Dalbert from Nice and €13.6m over for Samp defender Milan Skriniar.