4) Gianfranco Zola (Parma to Chelsea – £4.5m)
The Italian magician was a talismanic figure for the Blues during his seven years at Stamford Bridge. He won the Football Writers’ Footballer of the Year in his first season at the club and his standards never dropped.
Zola never won a Premier League title with Chelsea, but he still lifted numerous trophies, including two FA Cups, a League Cup, a Cup Winners Cup and the Super Cup