24-year-old goalkeeper of Portuguese club Porto Diogo Costa topped the list of the world's most expensive goalkeepers according to Transfermarkt website.
The transfer value of Costa is estimated at €45 million. PSG goalkeeper Gianluigi Donnarumma, AC Milan's Mike Maignan and Real Madrid's Thibaut Courtois have a similar market value.
The list also includes Ederson Moraes of Manchester City (€40m), Andre Onana of Manchester United (€40m), Gregor Kobel of Borussia Dortmund (€35m), Jan Oblak of Atletico Madrid (€35m), Alisson Becker of Liverpool (€35m) and Marc-Andre ter Stegen of Barcelona (€35m).
