Power Rankings: Mavs vault back to No. 2

The Mavericks have climbed five spots to No. 2 in ESPN.com’s weekly NBA Power Rankings.

It’s Dallas’ highest ranking in six weeks, since they appeared at No. 1 on Dec. 27 ... which is the same day Dirk Nowitzki suffered a sprained knee in Oklahoma City that would up costing him nine games in the longest injury absence of Nowitzki’s career.

The Mavs made the jump from No. 7 largely on the strength on their current eight-game winning streak -- which is the league’s longest -- and a win in Boston on Friday night that gave Dallas regular-season sweeps of the top two teams in the East and improved its record to 6-2 against the Spurs, Celtics, Heat and Lakers. Nowitzki didn’t play in the two losses, both of them inflicted by San Antonio.

This week’s Mavs comment:

“If anyone in Big D feels triumphant after a week of havoc-wreaking, rep-staining weather, it's the Mavs. Their mojo is back and they're now 5-2 against the Spurs, Celtics and Heat. (PS: Dirk didn't play in either L.)