Jerome Miron-Imagn Images

Mavericks’ Cooper Flagg savagely posterizes Pistons’ Cade Cunningham

Originally posted on NBA on ClutchPoints | Last updated Dec 18, 2025 9:22 PM ET

The Dallas Mavericks fans erupted early as Cooper Flagg delivered a statement dunk that shook the building. Four minutes in, the Mavericks rookie took a pass, blew past his defender, and rose over Cade Cunningham of the Detroit Pistons for a vicious slam. The moment ignited the bench and lifted the American Airlines Center. Dallas entered 10–17, No. 12 in the West. Detroit arrived 21–5, No. 1 in the East. For one instant, none of that mattered.

Cooper Flagg‼️

Up high, down HARD pic.twitter.com/T2HLzi4s3I

— ClutchPoints (@ClutchPoints) December 19, 2025

Flagg shook Ausar Thompson on the drive and never slowed. Cunningham was waiting. Flagg attacked anyway. Authority. Confidence. No hesitation. The Pistons felt it. The crowd roared. It was more than a highlight. It was intent. And it begged the question—what does Cooper Flagg do next?

This article will be updated.

This article first appeared on NBA on ClutchPoints and was syndicated with permission.

More must-reads: