A rumour from Turkey indicates that Besiktas has reached an agreement in principle with Anderlecht for the transfer of Mario Stroeykens. However, Sasha Tavolieri reports that Stroeykens has refused the proposal and is not interested in a move to Besiktas JK.

Turkish media, including Mustafa Özgür Sancar, report that Besiktas has reached an agreement in principle with Anderlecht for Mario Stroeykens and has made its final offer. The player has not yet made his decision. There are also interested parties from France and Italy. Last summer, Mario Stroeykens had little interest in Turkey. Anderlecht is seeking money to remain financially healthy, and a transfer could generate millions of euros, but the move may not be imminent.

Turkish club Beşiktaş has contacted Anderlecht to explore a winter deal for Mario Stroeykens, a 21-year-old Belgian and DR Congolese attacking midfielder, proposing a loan with an option to buy. However, Anderlecht have rejected this approach, insisting on a permanent transfer. Stroeykens is under contract with the Belgian club until 2028, and it is reported that the club wants to use the funds from a sale to finance its own winter reinforcements. It is unclear if Beşiktaş possesses the financial means to complete a permanent purchase. In the 2025/2026 Jupiler Pro League season, Stroeykens has made 15 appearances and scored one goal. His market value is currently listed as €8.00m by Transfermarkt, and other clubs, including Olympique Marseille and West Ham United, have been linked with him in the past. Reports from September 2025 mentioned a €6.5 million bid from SC Braga, while in August 2025, it was suggested Anderlecht's asking price was between €6-10 million.