#4 AC Milan
The first Serie A outfit on a list dominated by Italian clubs, AC Milan are one of Europe’s most decorated teams of all time and there were many an eye-watering transfer fee which fuelled such success, four to be exact. The club’s first ever world-record transfer came in the form of Juan Schiaffino, an Uruguayan they signed from Peñarol in 1954 for the equivalent of £72,000. At the time, Milan were just the third club outside of England to have ever broken the world transfer record.
They have done so another three times since, signing Dutchman Ruud Gullit from PSV in 1987 for a fee of £6 million. Five years later, Italian giants would do it again by adding Frenchman Jean-Pierre Papin to their ranks; he was the first ever player to cost £10 million.
Of AC Milan’s record-breaking signings, the most recent came in 1992 when they snapped up Gianluigi Lentini from Torino for £13 million. The winger would go on to make 60 appearances for the club.