Giannis Antetokounmpo scored 17 third-quarter points, helping the Milwaukee Bucks maintain all but two points of a 17-point halftime lead. Antetokounmpo covered up for some sloppy play by the Bucks, who take a 93-78 lead into the fourth quarter.
The Celtics got as close as 11 points on two occasions, but some strong defensive work by second-year forward D.J. Wilson in his coming-out week saved the Bucks on at least two occasions.
The Celtics are playing without key big men Al Horford, Marcus Morris and Aron Baynes.
Jayson Tatum has 20 points to lead the Celtics.