Boston Celtics head coach Joe Mazzulla, left, and forward Jayson Tatum (0) look on from the bench in the second half of an NBA basketball game against the Chicago Bulls, Thursday, Dec. 19, 2024, in Boston. (AP Photo/Steven Senne)

Boston Celtics guard Jaylen Brown (7) and Chicago Bulls center Nikola Vucevic (9) chase a loose ball in the second half of an NBA basketball game, Thursday, Dec. 19, 2024, in Boston. (AP Photo/Steven Senne)

Boston Celtics head coach Joe Mazzulla shouts to his players in the first half of an NBA basketball game against the Chicago Bulls, Thursday, Dec. 19, 2024, in Boston. (AP Photo/Steven Senne)