Giannis Antetokounmpo had 31 points and 14 rebounds as the Milwaukee Bucks beat Boston Thursday night at home, 97-86.  The series is tied at three games apiece, meaning the Bucks will play in the seventh game of an N-B-A playoff series for the first time in eight years.  Antetokounmpo scored 20 of his points in the second half.  Milwaukee dominated inside, forcing the Celtics to take 36 shots from 3-point range, hitting just 10.  The Bucks also out-rebounded Boston 48-39.  The home team has won each of the first six games of the series.  With game seven at Boston’s T-D Garden Saturday, Milwaukee will be trying to break that trend.