The NBA announced on Saturday that Mazzulla was fined $35,000 for "aggressively pursuing and directing inappropriate language toward a game official" after the Celtics lost 108-117 to the Chicago Bulls. Once the buzzer sounded, Mazzulla went straight to the ref and could be seen yelling and pointing in anger.

Boston Celtics coach Joe Mazzulla was fined $35,000 by the league for "aggressively pursuing and directing inappropriate language toward a game official," after Boston's 117-108 loss to the Chicago Bulls Thursday night.

Celtics coach Joe Mazzulla was fined $35,000 for “aggressively pursuing and directing inappropriate language toward a game official” Thursday night. Mazzulla received a technical foul for leaving the coach’s box and walking onto the floor during the fourth quarter of the Celtics’ 117-108 loss to the Chicago Bulls.