NBA playoffs: Pacers hammer Cavs, Thunder tie series with Nuggets 

Indiana can book its place in a second straight conference final with a victory in Game 5 on Tuesday in Cleveland.

MY BALL: Aaron Nesmith of the Indiana Pacers attempts a shot while being guarded by Max Strus of the Cleveland Cavaliers. Pic: Dylan Buell/Getty Images

Pascal Siakam scored 21 points and Myles Turner and Obi Toppin each added 20, lifting the Indiana Pacers to a 129-109 rout of the Cleveland Cavaliers in Game 4 of their Eastern Conference semifinal series on Sunday in Indianapolis.

The fourth-seeded Pacers hold a 3-1 lead over the top-seeded Cavaliers in the best-of-seven series. Indiana can punch its ticket to its second straight conference final with a victory in Game 5 on Tuesday in Cleveland.

"Staying focused," Turner said on TNT. "Don't believe the hype. Keep rollin'."

To add injury to insult for the Cavaliers, Donovan Mitchell sat out the second half with a left ankle injury. The six-time All-Star finished with 12 points on 3-of-11 shooting from the floor.

"Left ankle injury. He'll get an MRI tomorrow," Cavaliers coach Kenny Atkinson said. "Obviously, he couldn't go in the second half. We'll see what the MRI says."

Turner, Siakam and Toppin combined to make 25 of 37 shots from the floor and 7 of 10 from 3-point range for the Pacers, who rebounded from a 22-point loss in Game 3.

"We got punched in the mouth last game," Turner said in the TNT interview after the game. "We had a hell of a response, the stars set the tone and the bench picked it up the rest of the game."

Elsewhere, Shai Gilgeous-Alexander scored 25 points as the visiting Oklahoma City Thunder rallied from eight down in the fourth quarter to beat the Denver Nuggets 92-87 in Game 4 on Sunday to even the Western Conference semifinal series.

Oklahoma City regained home-court advantage in the best-of-seven series and will host Game 5 on Tuesday night.

Despite 27 points and 13 rebounds from Nikola Jokic, Denver missed an opportunity to put a stranglehold on the series. Christian Braun and Jamal Murray had 17 points each and Aaron Gordon finished with 15 points and 16 rebounds for the Nuggets.

"This isn't a funeral," Murray said. "It's 2-2. It's a three-game series."