Ja Morant capped a stirring, 34-point season debut with a spinning dribble in the lane to set up a game-winning floater as time expired in the Memphis Grizzlies' 115-113 victory over the New Orleans Pelicans in the NBA on Tuesday.

The Grizzlies, who entered on a five-game skid and were 6-19 during Morant's 25-game suspension for his social media antics with guns, trailed by 24 in the first half but took a 113-111 lead on Morant's inside basket with 1:22 to go.

The Pelicans tied it and the teams exchanged missed 3-pointers before Morant's winner.

Jaren Jackson Jr. scored 24 points and Desmond Bane had 21 for Memphis, which also snapped the Pelicans' four-game winning streak.

Brandon Ingram scored 34 points for New Orleans, but Zion Williamson's time on the court was limited by foul trouble and he finished with just 13 points.

Morant was booed heartily by partisan Pelicans fans during pregame introductions and also when he handled the ball on the opening possession.

Those boos died down as the game wore on, and a section of visiting fans near the Memphis bench made themselves heard as Morant explosively scored eight points – twice hitting difficult driving shots as he was fouled – in a span of 1:20 early in the third quarter.

Although Morant looked winded at times and didn't hit many jumpers, his ability to drive into the paint – and finish – looked undiminished. His repertoire included crossover dribbles to set up high floaters in the lane, finger rolls and double-pump bank shots while hanging in the air.

Memphis got back into the game with an 11-0 run that began late in the first half and continued into the third quarter to make it 60-47.

The game was competitive from there on, with Morant continuing to find ways to prevent New Orleans from relaxing.

With the win, Memphis improved to 7-19 for the season, seven games back from 10th in the Western Conference. (AP)