The Bucks seized control of their series with the Celtics with a 113-101 win in Boston. Milwaukee leads the best-of-seven series 3-1.
Giannis Antetokounmpo got into foul trouble, but he rallied for a game-high 39 points on 15 of 22 shooting. George Hill had 15 points off the bench to help carry the Bucks, who only shot 44% from the field and hit 8 of 37 three-pointers.
Khris Middleton and Eric Bledsoe had 13 points apiece for the Deer.
Kyrie Irving led Boston with 23 points, but he hit just 7 of 22 shots, 1-7 from distance.
Game five is Wednesday night at 7 P.M. (Fiserv Forum, TV: TNT).