The performances of 21-year-old Senegalese central defender Massire Sylla, who is considered one of the most noteworthy performers of the season in Belgium, have attracted interest from several clubs, including Galatasaray, Beşiktaş, and Fenerbahçe. Despite the attention, the player has extended his contract with Union Saint-Gilloise until June 30, 2031. His market value is estimated to be 5 million euros. Sylla joined Union Saint-Gilloise in January 2026 from Lyn for a reported fee of €1.5M.