Done deal · 2026

Ousmane Diomande completes €40m move to Nottingham Forest

Sporting CP → Nottingham Forest · €40m · Value €46m · Confirmed

Confirmed 11 Aug 2026

Ousmane Diomande, a defender, has completed a move from Sporting CP to Nottingham Forest for €40m, confirmed 11 Aug 2026. The deal is now settled in Transfer Tracker's Done Deals record.

Who broke it: Nizaar Kinsella, 21 Jul 2026, 20 days before completion.

How the deal happened

• Interest · 21 Jul 2026 · Nizaar Kinsella, Ben Jacobs
• Talks · 22 Jul 2026 · Fabrizio Romano, Florian Plettenberg (Sky DE), Ben Jacobs, BBC Sport
• Agreed · 8 Aug 2026 · Ben Jacobs
• Here we go · 8 Aug 2026 · David Ornstein, Florian Plettenberg, Fabrizio Romano
• Signed · 11 Aug 2026 · Fabrizio Romano, Ben Jacobs, Sky Sports News, BBC Sport, Graeme Bailey, Alfredo Pedulla

More business at Nottingham Forest and Sporting CP

• Michael Noonan: Shamrock Rovers → Nottingham Forest · 30 Sept 2026
• Arnaud Kalimuendo: Rennes → Nottingham Forest · €30m · 1 Sept 2026
• Morato: Nottingham Forest → West Ham United · Loan + option to buy · 1 Sept 2026
• Zach Abbott: Nottingham Forest → Southampton · Loan + option to buy · 1 Sept 2026
• Daniel Bragança: Sporting CP → Torino · Loan + option to buy (€4m), loan fee €1m · 1 Sept 2026
• Pedro Gonçalves: Sporting CP → Fiorentina · Loan + option to buy (€22.5m), loan fee €2.5m · 1 Sept 2026
• Daniel Muñoz: Crystal Palace → Nottingham Forest · €26m · 31 Aug 2026
• Omari Hutchinson: Nottingham Forest → AC Milan · Loan + option to buy (€40m), loan fee €4.2m · 31 Aug 2026

• Ousmane Diomande profile, value & stats
• Nottingham Forest transfers & squad
• Sporting CP transfers & squad
• Done Deals · every completed transfer & spend tracker

See the full completed-deal record and more business at both clubs. Open on transfertracker.ai