This list, compiled by football transfer market experts at transfermarkt.co.uk, shows the club’s record departures including add-ons and would place a £7m total fee for Joao as the second-highest ever received by the Owls. But who is number one? Take a look.
13. =6) Paul Warhurst - £3.38m
Versatile defender/forward Paul Warhurst played in both the League and FA Cup finals of 1993 for Wednesday, moving on to Blackburn soon afterwards. (transfermarkt.co.uk) Photo: Getty Images
14. 4) Majid Bougherra - £3.41m
Algerian defender Majid Bougherra moved on to Charlton Athletic in 2007 after just one season at Hillsborough. Photo: FABRICE COFFRINI
15. 3) Niclas Alexandersson - £3.42m
Everton-bound 109-cap Sweden international Niclas Alexandersson left Wednesday in 2000. (transfermarkt.co.uk) Photo: Chris Lobina
16. 2) Emerson Thome - £3.6m
Emerson Thome took no prisoners and neither did Wednesday with their transfer haul of £3.6m from Chelsea in 1999. Photo: Craig Prentis