Tyrese Haliburton and the never-say-die Indiana Pacers pulled off yet another last-second comeback, this time on the NBA's biggest stage.

Haliburton's 21-foot jumper with 0.3 seconds left gave Indiana its first and only lead of the game, and the Pacers stunned the Oklahoma City Thunder 111-110 on Thursday night in Game 1 of the NBA Finals after a comeback for the ages.

“Man, basketball's fun,” Haliburton said. “Winning is fun.”

The Pacers turned the ball over 25 times, trailed by 15 points in the fourth quarter against a team with the best home record in the NBA and had no answers for Shai Gilgeous-Alexander — the NBA MVP who led all scorers with 38 points.

But they had the league's new Mr. Big Shot, who has now had one of these moments in every series the Pacers have played in these playoffs.

The Pacers were down by 15 with 9:42 left, their rally the biggest in the fourth quarter of a finals game since Dallas also came from 15 down to beat Miami on June 2, 2011.

Carlisle coached those Mavericks. And, well, here he is again.

Pascal Siakam led the Pacers with 19 points. Obi Toppin scored 17, Myles Turner had 15, and Haliburton and Andrew Nembhard each had 14.

Jalen Williams had 17 and Lu Dort scored 15 for Oklahoma City, which was 36-1 at home with 15-point leads this season.

Game 2 is at Oklahoma City on Sunday night.