Nottingham Forest have secured the signing of Ivory Coast centre-back Ousmane Diomande from Sporting of Portugal in a deal reported to be worth £34 million. The 22-year-old has put pen to paper on a four-year contract that includes an option to extend for a further season.
Immediate impact and tactical fit
The arrival of Diomande is the latest piece of transfer activity as Forest reshape under new head coach Oliver Glasner. Glasner, who favours a 3-5-2 system, is expected to deploy the Ivorian as one of three central defenders alongside Nikola Milenkovic and Murillo, giving the manager a physically imposing and experienced-looking back line despite Diomande's youth.
Forest's chief football officer, George Syrianos, emphasised the player's readiness for the step up.
"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 at Forest," Syrianos said, adding that Diomande is "a powerful, commanding defender, and arrives with a winning mentality."
Diomande, who was part of Sporting's side that won consecutive Portuguese league titles in 2023-24 and 2024-25 and reached the Champions League quarter-finals last season, brings significant club-level pedigree to the City Ground.
"I am very happy to be here. It is a historic club, and it motivates me to join such a club," Diomande said on joining Forest. "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."
Career so far
Diomande's path to the Premier League has been brief but eventful. He began his career at Olympic Sport Abobo in Ivory Coast, moved to Danish side FC Midtjylland, and joined Sporting in January 2023. During his time in Lisbon he amassed 132 first-team appearances and featured at the highest level of European competition.
| Statistic | Value |
|---|---|
| Age | 22 |
| Sporting first-team appearances | 132 |
| Ivory Coast caps | 15 |
| 2026 World Cup appearances | 1 (group-stage win vs Curaçao) |
The defender also arrives with international experience, having won 15 caps for the Ivory Coast and making an appearance at the 2026 World Cup in a group-stage victory over Curaçao.
Squad context and recruitment drive
Diomande becomes one of several new faces at Forest this summer as Glasner builds the squad to his specifications. The club added Austria midfielder Xaver Schlager on a free transfer in July, and the backing for a sizeable fee for Diomande signals Forest's willingness to invest in defensive reinforcement.
- Transfer fee reported at £34m.
- Contract: four years with option for an extra season.
- Expected role: part of a three-man central defence under Glasner.
The signing carries both immediate and medium-term implications. In the short term, it offers Glasner a physically robust option to shore up a defence in a system that demands strong, ball-playing centre-backs. Over the longer term, Diomande's experience in title-winning sides and European competition suggests the club view him as a player who can contribute to sustained progress rather than a stop-gap.
Forest supporters will be keen to see how quickly Diomande adapts to the Premier League's pace and intensity, and whether a substantial outlay for such a young defender will pay early dividends for a side aiming to consolidate and improve under a new coach.
With pre-season continuing and the transfer window still open, Diomande's arrival is a clear statement of intent from Nottingham Forest as they look to the coming campaign.
