Aleksa Oparnica advanced past Cem Christopher Kucukhuseyin in the ITF M15 Kursumlijska Banja 13 Men. Oparnica arrived with an ATP ranking of 2097 and had suffered a 4-6, 6-0, 2-6 loss to Egor Khotchenkov on August 19, 2026 in M15 Kursumlijska Banja 12, but he prevailed on the clay court in Serbia o…