Boston Celtics head coach Joe Mazzulla is the kind of coach that doesn't take crap from others, both from his players and from his opponents. On Wednesday night preseason action against the Toronto Raptors, Mazzulla did not take too kindly to some showboating from guard Immanuel Quickley .

With less than four minutes remaining in the second quarter, RJ Barrett pushed the ball in transition against the Celtics and found a wide-open Quickley in the corner. The Raptors guard then pulled the trigger on a triple while standing in front of the Boston bench and drilled it after almost certainly hearing some jeers from the Celtics. Quickley then taunted the bench with a phone call celebration as Mazzulla called timeout and chastised the Raptors guard, telling him, non-respectfully, to keep q

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