Born on 21 August 1996 in Eskişehir Province, Turkey, Toköz is a product of Eskişehirspor. The young and talented mid-fielder had made 32 appearances for his team in 2017-18 season. He joined Beşiktaş at the start of 2018/19 season.
A product of German Bundesliga team Bayer 04 Leverkusen, the forward Yalçın (born 1996 in Germany) had made 6 appearances for the Turkish U-19 national team. He signed for the Black Eagles in the summer of 2018.