The Atlanta Hawks staged a remarkable comeback, overcoming a 15-point deficit to defeat the Boston Celtics 117-116 in their NBA Cup opener. Onyeka Okongwu's crucial tip-in with just 6.1 seconds remaining secured the victory, despite missing star player Trae Young due to injury.

Dyson Daniels shone with a career-high 28 points, while Jalen Johnson contributed a triple-double. Jaylen Brown led the Celtics with 37 points, but his last-second jumper fell short, ending Boston's two-game winning streak.