Joe Mazzulla reveals a twist before Celtics’ first preseason game

Boston, MA - November 3: Boston Celtics head coach Joe Mazzulla talks with assistant coach Tony Dobbins in the third quarter at TD Garden on November 3, 2025. (Photo by Matthew J. Lee/The Boston Globe via Getty Images) | Boston Globe via Getty Images CLEVELAND — Joe Mazzulla doesn’t typically speak at Celtics shootaround. But standing by the court at Rocket Mortgage FieldHouse, Mazzulla had something he wanted to share: for the first time in his head-coaching tenure, he decided to gi