Paul George had 22 points for Los Angeles while Leonard added 17. James Harden, in his return to Wells Fargo Center, had 16 points and 14 assists for the Clippers, who had lost six of nine.

Tyrese Maxey had 26 points for the 76ers while Kelly Oubre Jr. added 17 points, but was stuffed at the rim by Leonard on a play that 76ers coach Nick Nurse felt should have resulted in a foul.

Nurse stormed onto the court after the game to dispute the ending with officials and had to be restrained by his assistants.

Leonard scored with 44 seconds left, was fouled by Tobias Harris and hit the free throw to give the Clippers a 105-104 lead. 76ers guard Buddy Hield responded with a long three-pointer to give Philadelphia a 107-105 lead with 23 seconds to play.

After a timeout, Leonard sliced down an empty lane with a reverse layup and added the free throw after being fouled by Oubre to give the Clippers a one-point lead again. Oubre drove the lane at the other end of the floor, but Leonard pinned the ball against the rim and backboard.

Harden played 1½ seasons for the 76ers before being traded to Los Angeles on Oct. 31 as part of a seven-player deal after a public summer contract dispute with Daryl Morey, Philadelphia’s president of basketball operations.

Harden was greeted by boos when he was the first Clippers player introduced, then was heckled every time he touched the ball. After a sluggish start, Harden began to assert himself on the offensive end and distribute the ball. He was six of 15 from the floor and grabbed five rebounds.

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Clippers continue their four-game trip in Orlando on Friday night.