Beşiktaş is considering a move to sign Alvyn Sanches for the forthcoming season. The club had expressed interest in acquiring him during the winter transfer window; however, their offer was turned down by Lausanne-Sport. Beşiktaş is reportedly preparing to present a new proposal to secure Sanches for the next season. The player's existing contract with Lausanne-Sport is valid until 2026. Throughout this season, Sanches has participated in 27 matches, during which he scored 13 goals and made 4 assists. His market value is currently estimated at 9 million Euro, while Beşiktaş's previous offer was 5 million Euro.

Besiktas made advances to sign Alvyn Sanches, but their approach was rejected as Sanches has already decided on his club for the next season.

Besiktas submitted a last-minute offer of five million euros plus a ten percent resale percentage to secure Alvyn Sanches. Nonetheless, Lausanne-Sport's sporting director, Stéphane Henchoz, firmly rejected the offer. Henchoz had previously indicated that Sanches would only depart if an offer deemed irresistible was presented. It is reported that Lausanne-Sport is targeting at least seven to eight million euros for Sanches, whose current market value is estimated at nine million euros. With Sanches entering the final year of his contract next summer, he might be available for a reduced price, particularly if a personal agreement with a prospective club is reached. Despite Besiktas's proposal being given careful consideration, Sanches and his team are already seriously contemplating another club for his future career, although it remains unclear whether this includes any of the Belgian clubs that have shown prior interest in him.