Details on Joe Mazzulla suspension and betting allegations.

PHOENIX, ARIZONA - MARCH 09: Head coach Joe Mazzulla of the Boston Celtics gestures during the second half against the Phoenix Suns at Footprint Center on March 09, 2024 in Phoenix, Arizona. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Chris Coduto/Getty Images)