Roberts put the Pelicans in front after Reggie Jackson's driving layup had given the Thunder a 102-101 lead. Anthony Davis added two free throws with 21 seconds left to push the Pelicans' lead to 105-102, then blocked Jeremy Lamb's 3-point attempt with 3.2 seconds left.
Eric Gordon scored 21 points for the Pelicans and Davis finished with 18.
Kevin Durant shrugged off a slow start to score 25 points. After shooting 4 of 12 from the field in the first half, Durant found his range in the third quarter. The forward nailed a 3-pointer to open the Thunder's second-half scoring and finished the quarter with 13 points on 4-of-8 shooting.
He played 32 minutes and did not see action in the fourth quarter.
Rookie reserve Steven Adams had 10 points and 15 rebounds and Serge Ibaka finished with 11 points, including seven in the fourth quarter.
Coming into the game 13 of 58 on 3-pointers in the preseason, Oklahoma City found its touch from long distance, connecting on 9 of 12 3s in the first half in grabbing a 56-52 lead at intermission. The Thunder finished 12 of 23 from behind the arc.
Copyright by STATS LLC and The Associated Press
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