The Mavs are now one win shy of their franchise-record victory streak, set at the start of the 2002-03 season. They can tie the record Thursday at home against the Cleveland Cavaliers.
DeSagana Diop had 10 rebounds for Dallas, which has its second 13-game winning streak of the season. Dallas, which also had a 12-game winning streak earlier in the season, is the first team in NBA history to record three winning streaks of 12 or more games in one season.
Kevin Garnett had 15 points and 13 rebounds for the Timberwolves.
2014: The Year in Music [PHOTOS]