Shai-Gilgeous Alexander scored 55 points to lead Oklahoma City to a double-overtime win over Indiana Thursday night.

INDIANAPOLIS — The Indiana Pacers started the new season the same way they ended last season — in a battle with the Oklahoma City Thunder.

In the end, the Thunder, who defeated Indiana in seven games to win the NBA title in June, came out on top of a back-and-forth battle to pick up the 141-135 win in double overtime.

Indiana trailed 54-47 at halftime, but fought back in the third quarter to take the lead.  

Shai Gilgeous-Alexander split a pair of free throws with 13 seconds remaining in regulation to give Oklahoma City a 113-111 lead. Pascal Siakam hit a jump shot to tie the game with six seconds left, then grabbed a rebound on Gilgeous-Alexander’s shot to win the game in the final seconds, sending the game to overtime.

Gilgeous-Alexander again put the Thunder ahead in overtime, 124-122, with a fadeaway with 27 seconds remaining, but the Pacers answered again, this time with a layup from Bennedict Mathurin with 13 seconds left to send the game to a second extra period.

Gilgeous-Alexander finished with a game-high 55 points for Oklahoma City. Mathurin had 36 points and 11 rebounds for the Pacers.

The Pacers are back in action Saturday in Memphis for their first road game of the season.