RBC Namur Belgrade weathered a second-half collapse to hold off Basket Sijsele 73–66 in Group Stage action, but the seven-point margin flatters neither team's composure down the stretch. Sijsele dictated the first half, building a 14-point lead by intermission at 38–24. RBC Namur Belgrade clawed back with a dominant third quarter — outscoring their visitors 25–9 to seize a 49–47 advantage — only to see the fourth quarter turn into a sloppy affair. Neither side could build separation; RBC Namur Belgrade managed 24 points in the final frame while Sijsele scored 19, enough to secure the win but hardly a display of control. Sami Demirtas anchored the comeback with 16 points on efficient shooting: 5/9 from the floor, 4/5 from three, and a perfect 2/2 at the line. Cerquarelli Mehdi added 13 points on 5/11 shooting with 4 rebounds and 3 assists. For Sijsele, Landon Unruh and Wout Verborgt each posted 13 points — Verborgt pulling down 7 rebounds — but neither could extend their third-quarter collapse into a fourth-quarter rally. RBC Namur Belgrade host Sijsele again on Saturday 29 August. Basket Sijsele travel to Royal Nivelles Basketball on Saturday 22 August.