Nottingham Forest have completed the signing of Ivory Coast centre‑back Ousmane Diomande from Sporting CP, sealing a four‑year contract that sees the club part with a fixed transfer fee estimated at £34.3 million (around €40 million). The deal, which has been in the works for several weeks, marks a significant investment for the Forest hierarchy as they look to bolster a back line that has struggled for consistency in recent campaigns. The push for Diomande was largely driven by head coach Oliver Glasner, who first identified the defender as a target while attempting to secure his services for Glasner’s former club, Crystal Palace. After those negotiations fell through, Glasner turned his attention to Forest, convinced that the young Ivorian’s blend of physicality, composure on the ball and experience at the highest levels would be a perfect fit for the Premier League side.
Diomande arrives in Nottingham at the age of 22 after spending the previous four seasons with Sporting Lisbon. During his tenure in Portugal, he amassed 132 appearances across all competitions, contributed seven goals from defence, and played a pivotal role in two Primeira Liga triumphs.
His performances helped Sporting reach the knockout stages of the UEFA Champions League and secure a domestic double in the 2024/25 season, underscoring his ability to thrive under pressure and in winning environments. On the international stage, Diomande has already earned 15 caps for the Ivory Coast senior team. He was a member of the squad that captured the 2023 Africa Cup of Nations – the nation’s first continental trophy in eight years – and he featured in the World Cup earlier this summer, gaining valuable experience against some of the world’s best attackers.
Speaking after the announcement, Diomande expressed his enthusiasm about the move: "I am very happy to be here. It is a historic club, and it motivates me to join such a club.
I believe we can achieve very good things this season and I am looking forward to meeting the players and head coach. I will give my best and all I can to help the team. I cannot wait to meet the supporters at the City Ground and together we can have a good season." Forest’s chief football officer George Syrianos echoed the optimism surrounding the acquisition. "We have been very clear on the profile of player we want to add to the squad, so we are excited to welcome Ousmane to the club.
He has fantastic experience for a defender of his age. Playing a crucial role in title‑winning teams and going into the latter stages of the Champions League puts him in a great position to integrate well here at Forest.
Ousmane is a powerful, commanding defender, and arrives here with a winning mentality. He shares the same ambition for success we have, and we are excited to see the impact he can have in a Forest shirt," Syrianos said.
Diomande’s attributes extend beyond sheer physical presence. He is comfortable playing out from the back, possesses a good reading of the game, and is adept at organizing the defensive line. His experience in high‑stakes matches – from league deciders in Portugal to continental knockout fixtures – means he is accustomed to the intensity and scrutiny that come with Premier League football. Moreover, his recent involvement in international tournaments has sharpened his tactical awareness and resilience, qualities that Forest hope will translate into greater stability at the heart of defense.
The signing also reflects a broader strategy by Forest to invest in young, yet proven talent capable of contributing immediately while also offering resale value in the future. By securing Diomande on a long‑term contract, the club aims to build a defensive core that can grow together, potentially forming the backbone of a side that aspires to climb the league table and challenge for European qualification.
In addition to Diomande, the club’s transfer activity includes several other moves, both incoming and outgoing, across various leagues. Notable arrivals on free transfers include Xaver Schlager from RB Leipzig, Grady McDonnell from Club Brugge, and Kasen Brown from Manchester City.
Meanwhile, players such as Willy Boly, Stefan Ortega, Shae Cahill and Esapa Osong have been released as part of the squad reshuffle. The financial details of many of these transactions remain undisclosed, but the headline figure for Diomande’s transfer underscores Forest’s willingness to spend where they see value. The club’s supporters, who have endured a period of mixed fortunes, will be eager to see whether the new signing can help bridge the gap between defensive frailties and the ambitions set by the board and coaching staff.
As the season approaches, anticipation builds around how quickly Diomande will adapt to the pace and physicality of English football. His debut is highly anticipated, and early training sessions will be closely watched by fans and pundits alike.
If he can replicate the form that made him a standout in Portugal and on the international stage, Nottingham Forest could well have secured a cornerstone for their defensive line for years to come. The club also encourages fans to stay engaged through the Transfer Centre LIVE app, offering live updates and exclusive content.
Whether you have a Sky subscription or not, the Sky Sports app provides instant access to the latest news and analysis, ensuring supporters never miss a beat as their team prepares for the challenges ahead. Overall, the acquisition of Ousmane Diomande represents a strategic coup for Nottingham Forest, blending youth, experience, and a proven winning mentality. The club now looks forward to integrating him into the squad, hoping his presence will elevate the team's defensive performances and contribute to a successful campaign at the City Ground.