The AP reports: Kevin Garnett was frustrated and sitting on the Boston bench after getting three fouls in a matter of seconds while battling with Dirk Nowitzki, Dallas’ lone All-Star. Celtics coach Doc Rivers was already in the locker room because of the same sequence late in the third quarter, ejected after two quick technical fouls… And they would go on to a physical 99-92 victory Thursday night over the Mavericks. Pierce scored 18 of his 31 points in the fourth quarter, but gave plenty of credit to his argumentative coach… Nowitzki led Dallas with 37 and Howard had 17 before fouling out. Ray Allen, playing a night after injuring his thumb in the Celtics’ victory at New Orleans, had 20 points and will play in the All-Star game still. Rajon Rondo had 19 points, 15 rebounds and 14 assists for his second career triple-double, both this season.