Rick Carlisle ejected early in second half
Carlisle clutched at his wrist and seemed to be motioning as if to suggest that Kevin Garnett should have been whistled for holding Dirk Nowitzki as the Mavericks tried to set up their offense.
An enraged Carlisle raced past halfcourt until he was practically next to the Celtics' bench before referees gave him a pair of technical fouls, leading to his ejection.
Boston led 45-42 with 10:33 to play in the third quarter at the time of Carlisle's disqualification. Ray Allen made both technical free throws to push that lead to five.
Carlisle is the second visiting coach to be tossed this season after Wizards coach Flip Saunders got ejected just 1:44 into a game last week.
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