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Derrick White Describes Joe Mazzulla Turning Celtics Practice Into a ‘War Zone’

White recalled a chaotic Celtics drill where Mazzulla blasted war zone sounds, machine guns and explosions, to simulate pressure. “Me and Payton were going all out, and then Joe goes, ‘Turn on the music,’” White said. “Next second, you hear machine guns rattling… it was insane.” The coach reportedly used the chaos to toughen players’ focus under stress.