MINNEAPOLIS — Just when Dallas needed it most, Shawn Marion returned to the high-scoring form that has been absent all season.

That's been the story of this remarkable run for the Mavericks.

Marion had a season-high 29 points and 14 rebounds and the Mavericks stretched the league's longest active winning streak to 12 straight games with a 125-112 victory over the Minnesota Timberwolves last night.

"I've done that before," Marion said with a chuckle about his monster line. "That's easy."

Dirk Nowitzki scored 24 points and Caron Butler had 23 for Dallas, which has flourished since acquiring Butler and Brendan Haywood from the Washington Wizards at the trade deadline.

The Mavericks (44-21) haven't lost since Feb. 16 at Oklahoma City and have climbed into second place in the Western Conference, not far behind the Los Angeles Lakers (46-18).

Al Jefferson had 36 points and 13 rebounds for Minnesota in his return from a two-game suspension because of a DWI arrest.

But the Timberwolves committed 26 turnovers. Wolves rookie point guard Jonny Flynn had eight of those turnovers and the Mavs turned all those mistakes into 32 points.

"A lot of it was just careless mistakes," Jefferson said.

Cavaliers 97, Spurs 95: Mo Williams made two free throws with 9 seconds left, Delonte West scored 16 points and host Cleveland won without its superstar, LeBron James, in beating San Antonio.

The Cavs played their second straight game without the injured James. The NBA's reigning MVP is nursing a tender right ankle and the Cavs are being extra cautious. Manu Ginobili scored a season-high 38 points to lead the Spurs, playing their first game without guard Tony Parker. He's out six weeks with a broken hand.

Knicks 99, Hawks 98: New York beat visiting Atlanta for the third time this season when video replay showed Al Horford's basket came after the buzzer.

Danilo Gallinari scored 27 points and David Lee had 19 points and 13 rebounds for the Knicks. Josh Smith had 25 points, 10 rebounds and six assists for the Hawks.

Hornets 135, Warriors 131: Darren Collison had 16 points and a career-high 20 assists, and host New Orleans snapped a four-game losing streak.

Collison's assists total tied Phoenix's Steve Nash for the most in an NBA game this season. Marcus Thornton and David West each scored 28 points for the Hornets, while Anthony Morrow and Reggie Williams had 28 points each for the Warriors.

Grizzlies 107, Nets 101: Mike Conley and Rudy Gay had 21 points each, and Marc Gasol added 19 points and 13 rebounds as host Memphis beat New Jersey, snapping an eight-game home losing streak.

Courtney Lee scored a career-high 30 points to lead New Jersey.