In their third Summer League game, the Pacers fell to the Atlanta Hawks 87-67, dropping them to 0-3 in Las Vegas.
The Pacers were led by Alize Johnson, who notched a double-double with 18 points and 10 rebounds.
Indiana was also aided by strong performances from DeVaughn Akoon-Purcell (16 points) and Shizz Alston (10 points).
The Hawks were led by Jordan Sibert, who put on a shooting clinic, going 7-of-9 from 3-point range to rack up 21 points.
The Pacers had a coaching surprise when Tim Dather, Indiana's head video coordinator, was given a chance to be the head coach for the matchup with the Hawks by Mad Ants and Summer League head coach Steve Gansey.
Indiana started the game at a disadvantage, with Edmond Sumner (sore left foot), Aaron Holiday (sore left hip), Brian Bowen (sore back), and Goga Bitadze (not with team, visa approval), all unable to play.
Although the Pacers started the game well, leading by as much as five in the first quarter, a late run by the Hawks put Atlanta ahead in the early-going, with Indiana trailing 20-14 after the opening quarter.
Johnson was one of the few Pacers who were locked in offensively, scoring seven points in the first quarter alone.
Atlanta began to open up the game in the second quarter, leading by as much as 15, but Johnson and the Pacers continued to fight, with Johnson delivering an and-one to cut the deficit to 10.
Indiana continued to deliver offensively, going on an 11-2 run towards the end of the half, allowing the Pacers to enter the locker room trailing 39-31.
With the second half underway, the Pacers started to lag behind the sharpshooting Hawks as Sibert connected on his sixth 3-pointer of the game to put the Hawks up by double-digits.
By the end of the third, the Pacers trailed the Hawks 62-50 with Indiana shooting just 37.3 percent from the field.
In the fourth quarter, Indiana had a brief run, but it was Atlanta that closed the game strong, wrapping up the 20-point victory and sending the Pacers to their third Summer League defeat in Las Vegas.