The Celtics used a 12-4 run to start the final quarter to break open what had been a tight game. Green had seven points during the spurt and 11 overall in the quarter, while Olynyk scored 10 after Boston entered the fourth clinging to a 70-68 lead.
The Celtics held a 49-46 advantage at the half despite shooting just 40 percent. Brandon Bass led the way with 12 points. Knight had 14 first-half points for the Bucks, who shot 44 percent. The Celtics had 11 second-chance points compared to just one for the Bucks.
It was back and forth through the first two quarters with 10 lead changes and six ties.
Boston held a 26-24 lead after the first quarter, sparked by Bass, who had all 12 of his first-half points in the quarter.
Boston shot 48 percent for the game, compared with 43 percent for Milwaukee.
Milwaukee C Larry Sanders was diagnosed with a fractured orbital bone in his right eye. He was injured when he was elbowed by James Harden in Saturday's game against the Houston Rockets. He's expected to be out at least through the All-Star break, coach Larry Drew said. ... The Bucks also were without Caron Butler (ankle), Ersan Ilyasova (back) and O.J. Mayo (illness). Luke Ridnour (back) and Ekpe Udoh (ankle) returned to the lineup. ... Celtics G Rajon Rondo sat out after logging a season-high 37 minutes Sunday. He's been limited from playing in back-to-back games as he recovers from ACL surgery. "I think he'll be playing back-to-backs very soon," Boston coach Brad Stevens said. ... Celtics' starting G Avery Bradley (sprained right ankle) also was out of the lineup. He's scheduled to undergo an MRI on Tuesday.
MVP: Jeff Green. Boston's leading scorer shook off a slow start and took command of the contest with a dominating performance during the second half in Milwaukee. Green scored 19 of his game-high 29 points after intermission, enabling Boston to pull away late.
X factor: Turnovers. The shorthanded Bucks showed off why they have been the worst team in the NBA this year by committing 21 turnovers. The Celtics took advantage of those mistakes by scoring 32 points off Milwaukee's miscues.
That was ... impressive: Jared Sullinger, the reigning Eastern Conference player of the week, posted 13 points and 10 rebounds. Those numbers gave the second-year power forward his sixth consecutive double-double, continuing a red-hot month of February for the 21-year-old.