Domantis Sabontis put the ball on the floor, drove hard toward the basket, muscled in the go-ahead layup and drew a foul with 8.4 seconds to play.

After he missed the free throw, Indiana's defense forced an errant 3-pointer with 1.8 seconds left and held on for a 108-107 victory over the Boston Celtics.

Sabonis followed Saturday's triple-double, with 19 points, 10 rebounds and five assists - his third double-double in three games and No. 100 in his career.

Malcolm Brogdon scored a season-high 25 points and T.J. Warren added 17 as the Pacers improved to 3-0 for the first time since 2013-14, sweeping their first back-to-back of the season - barely.

The Celtics spent most of the second half playing catch up before finally taking a 107-106 lead when Robert Williams III stole an inbound pass and found Marcus Smart for a breakaway layup with 11.8 seconds to go.

After a missed free throw Sabonis, Boston called timeout to set up a play and Jayson Tatum's long 3 was off the mark. Tatum finished with 25 points and Jaylen Brown had 18 as the Celtics lost their second straight.

Tatum also had 11 rebounds and five assists. Payton Pritchard added 13 points off the bench. Smart finished with 11 points and six assists. Robert Williams III had 12 points. Boston had 18 turnovers and got outrebounded 37-34.

Brogdon had five rebounds and five assists. T.J. Warren had 17 points and Doug McDermott added 16 off the bench. McDermott has had three straight double-figure games and went 3 of 7 on 3s. 

Myles Turner had 10 points, seven rebounds and five blocks and now has 17 blocks in three games. 

Indiana had 23 assists on 45 baskets - it's only the seventh time in the Pacers NBA history they've started 3-0.

Pacers will try to win their fourth straight under first year coach Nate Bjorkgren against Boston on Tuesday.