5) Max Allegri – £969.73m
The Italian was in the dugout during Juventus’s years of lavish spending, with hefty sums being paid for the likes of Cristiano Ronaldo, Gonzalo Higuain and Paulo Dybala.
Allegri’s total will top £1bn when the fee for Dusan Vlahovic is included. The Serbian international was signed from Fiorentina during the January transfer window.
