According to A Bola, while the Turkish press says there may be progress in January regarding Galatasaray's interest in Diomande, the green and whites are not willing to let the player leave. The Istanbul club reportedly cannot match the Ivorian's transfer value, as the 21-year-old center-back is beyond the financial reality Galatasaray can offer. Sporting is not interested in the departure of the Ivorian, and his release clause is €80 million.

According to information from Africafoot, Ousmane Diomande is a target for Galatasaray. Diomande is a 21-year-old Ivorian international central defender who is also being watched by several major European clubs. The Turkish club is reportedly looking to sign the player in the winter transfer window to add defensive solidity before European competition resumes. The player is under contract with Sporting CP until June 2027 and has an €80 million release clause. That figure has reportedly reduced interest from interested clubs, including clubs in England, for months. Sporting does not intend to sell him for a low price. Reports from Africafoot suggest Lisbon would expect a minimum of €60 million to start negotiations. Diomande, who joined the Portuguese club in January 2023, has a current market value estimated by Transfermarkt to be €45.00m. He has made 4 appearances in the Liga Portugal this season, has been capped 9 times by the Ivory Coast, and has scored 1 goal.