Tim Duncan had 28 points and 19 rebounds to help the Western Conference-leading San Antonio Spurs beat the Dallas Mavericks 92-91.
Dallas scored seven unanswered points from 92-84 down to give San Antonio a fright, but it was not enough to avoid being swept in the season series.
Gary Neal added 16 points for the Spurs, while Dirk Nowitzki paced the Mavericks with 21 points and 11 rebounds.
In the day's other game, Damian Lillard had 26 points and 10 assists in the Portland Trail Blazers' 105-90 win over the New York Knicks.
