Grant Williams scored a career-high 27 points and hit seven 3-pointers, Jayson Tatum added 23 and the Boston Celtics set a Game 7 record with 22 3-pointers to eliminate the NBA champion Milwaukee Bucks 109-81 on Sunday in the Eastern Conference semifinals.

Boston will face top-seeded Miami beginning Tuesday in a rematch of the 2020 East finals. The Heat beat the Celtics in six games in that series at Walt Disney World.

The Celtics trailed early but outscored the Bucks 61- 38 in the second half to cruise to the victory. Boston used a whopping 54-point advantage from behind the arc to improve to 25-9 in decisive seventh games.

The Bucks are now 3-9. They went 4 for 33 (12.1%) from the 3-point line. That’s the second-worst 3-point percentage in a playoff game ever (minimum 30 attempts).

Giannis Antetokounmpo had 25 points, 20 rebounds and nine assists. But he was just 3 of 11 in the paint in the second half, including 1 for 6 the fourth quarter. Jrue Holiday added 21 points and eight assists. Brook Lopez finished with 15 points and 10 rebounds.

___

More AP NBA: https://apnews.com/hub/nba and https://twitter.com/AP_Sports

Milwaukee Bucks forward Giannis Antetokounmpo (34) shoots at the basket as Boston Celtics center Al Horford (42) defends during the first half of Game 7 of an NBA basketball Eastern Conference semifinals playoff series, Sunday, May 15, 2022, in Boston. (AP Photo/Steven Senne)

https://www.wnewsj.com/wp-content/uploads/sites/22/2022/05/web1_128844012-edc898b00f374fa6baabe1d981274d53.jpgMilwaukee Bucks forward Giannis Antetokounmpo (34) shoots at the basket as Boston Celtics center Al Horford (42) defends during the first half of Game 7 of an NBA basketball Eastern Conference semifinals playoff series, Sunday, May 15, 2022, in Boston. (AP Photo/Steven Senne)

Boston Celtics forward Grant Williams (12) defends as Milwaukee Bucks forward Giannis Antetokounmpo (34) looks for an opening around him during the first half of Game 7 of an NBA basketball Eastern Conference semifinals playoff series, Sunday, May 15, 2022, in Boston. (AP Photo/Steven Senne)

https://www.wnewsj.com/wp-content/uploads/sites/22/2022/05/web1_128844012-e56e3309c03540f78751d68cd1cf5799.jpgBoston Celtics forward Grant Williams (12) defends as Milwaukee Bucks forward Giannis Antetokounmpo (34) looks for an opening around him during the first half of Game 7 of an NBA basketball Eastern Conference semifinals playoff series, Sunday, May 15, 2022, in Boston. (AP Photo/Steven Senne)

Milwaukee Bucks center Brook Lopez (11) shoots at the basket as Boston Celtics center Daniel Theis, front right, defends during the first half of Game 7 of an NBA basketball Eastern Conference semifinals playoff series, Sunday, May 15, 2022, in Boston. (AP Photo/Steven Senne)

https://www.wnewsj.com/wp-content/uploads/sites/22/2022/05/web1_128844012-daf2aab9396d4f05b80643bc27788716.jpgMilwaukee Bucks center Brook Lopez (11) shoots at the basket as Boston Celtics center Daniel Theis, front right, defends during the first half of Game 7 of an NBA basketball Eastern Conference semifinals playoff series, Sunday, May 15, 2022, in Boston. (AP Photo/Steven Senne)