SAN ANTONIO -- Tim Duncan had 28 points and 19 rebounds to lead the San Antonio Spurs to a 92-91 win over the Dallas Mavericks on Thursday night at the AT&T Center.
Duncan was 12 of 20 from the field in recording 13th double-double of the season.
The Spurs (50-16) have won 50 games in 14 consecutive seasons, an NBA record.
Gary Neal had 16 points coming off the bench, Kawhi Leonard added 12, and Tiago Splitter 10 rebounds as they started the first of a four game homestand.
The Spurs got their first season sweep of the Mavericks in 15 years. They have defeated the Mavs by a margin of 23 points in the three games, but this one was much closer.
They had a 13-point second half lead cut to one when Dirk Nowitzki hit a bucket with 28 seconds left to make it 92-91.
A Ginobili jumper bounced off the rim and gave the Mavericks the ball with eight seconds and one last opportunity to for a victory, but a Vince Carter 3-point attempt with a second to play bounced off the rim.
San Antonio got 31 assists that turned into 37 field goals, but couldn't put the Mavericks away.
Nowitzki, who sat out the first 27 games of the year with a knee injury, made his return to the court against San Antonio on Dec. 23, kept them in the game. He had eight points back then, and Thursday he poured in 21.
He did it without Shawn Marion, sitting out his fourth game with a left calf contusion. O.J. Mayo, Mike James, Brandon Wright and Carter all had 10. Darren Collison scored 12, as Dallas (30-34) snapped their season high four-game winning streak.
The Spurs went on a 9-0 run to close out the half to up on Dallas 50-41. Duncan had nine points and 11 rebounds in the first half to lead San Antonio.
The Spurs out rebounded the Mavericks 31-14 in the first half.
NOTES: Guard Chris Wright, signed by the Mavericks on Wednesday, was diagnosed with multiple sclerosis last season while playing in Turkey. When he plays, he will be the first known NBA player to have and play with the disease. His MS is currently in remission. ... Spurs coach Gregg Popovich had positive news concerning point guard Tony Parker, who is out with a sprained left ankle. "I hope I'm not being too hopeful, but I think it will be shorter than two weeks," Popovich said pregame. He indicated that the All-Star is back on the court doing light shooting exercises. ... Saul "Canelo" Alvarez will face Austin Trout in a boxing match at the Alamodome on April 20. Spurs fans got a preview when the boxers faced off at half court to promote the fight during a first-quarter timeout. San Antonio boxer Jesse "James" Leija and former world champion Oscar De La Hoya, who is the fight promoter, joined them on the court.