Shai Gilgeous-Alexander scored 15 of his 35 points in the fourth quarter as the Oklahoma City Thunder rallied for a gritty 111-104 victory over the Indiana Pacers that leveled the National Basketball Association (NBA) Finals at two games apiece on Friday.

Frustrated for much of the game by Indiana’s relentless defense, NBA Most Valuable Player Gilgeous-Alexander found a way to fight through.

He followed a three-pointer with a pull-up jumper to give the Thunder their first lead since the first half with 2:23 remaining.

They wouldn’t trail again. Gilgeous-Alexander, who didn’t get to the free-throw line in the first half, added six free-throws in the final 44 seconds.

“It’s a dog fight,” Gilgeous-Alexander said after another intense, physical battle between the two teams. “Every time you step on the floor, on both ends of the floor they make you work.”

Jalen Williams scored 27 points, Chet Holmgren added 14 points and 15 rebounds and Alex Caruso chipped in with 20 points off the bench for the Thunder.

Pascal Siakam scored 20 points to lead Indiana, adding eight rebounds, five assists and five steals.

Tyrese Haliburton scored 18 points, Obi Toppin added 17 off the bench and the Pacers led by 10 late in the third quarter.

But Oklahoma City — which dropped back-to-back games just twice this season and haven’t lost consecutive games in the playoffs — clamped down defensively in the fourth, determined not to fall in a 3-1 hole.

“We knew it when we woke up this morning — 3-1 is a lot different than 2-2 going back home,” Gilgeous-Alexander said. “We played with desperation to the end the game and that’s why we won.”

Gilgeous-Alexander said the Thunder must “maintain the same desperation” when they host game five on Monday.

The Thunder are seeking their first title since the franchise relocated to Oklahoma City in 2008, having won it all in 1979 as the Seattle SuperSonics.