San Antonio: Tim Duncan had 28 points and 19 rebounds to help the San Antonio Spurs edge the Dallas Mavericks 92-91 on Thursday and sweep the season series over their Texas rivals for the first time in 15 years.

Gary Neal added 16 points and Kawhi Leonard had 12 for San Antonio, which maintained the NBA Western Conference’s top record at 50-16.

Dirk Nowitzki had 21 points and 11 rebounds for Dallas, which had a four-game winning streak broken.

San Antonio last swept Dallas during the regular season in 1998, Duncan’s rookie season.

The Mavericks pulled within 92-91 on a 7-0 run capped by Nowitzki’s fall-away jumper with 28.2 seconds left. After the Spurs’ Manu Ginobili missed a jumper, Vince Carter missed a long, fall-away three-pointer at the buzzer that would have won the game.

Portland’s Damian Lillard had 26 points and 10 assists and LaMarcus Aldridge chipped in 22 points and 10 rebounds as the Trail Blazers beat the New York Knicks 105-90.

Nicolas Batum added 18 points for the Trail Blazers.

J.R. Smith had 33 points and Kenyon Martin added 12 to lead New York, which shot just 33 per cent in the second half. The Knicks lead the Atlantic Division but have lost three straight on their West Coast road trip as injuries have decimated their starting five.

Tyson Chandler suffered a bruised knee in a collision on Wednesday at Denver and was unavailable, joining Carmelo Anthony and Amare Stoudemire on the sidelines.