The Dallas Mavericks want the No. 2 seed in the Western Conference playoffs, and they know they'll have to play better than they did on Monday night once the postseason begins. Dirk Nowitzki had 23 points and 12 rebounds, and the Mavericks beat the Houston Rockets 98-91 in overtime to move a half game ahead of the Los Angeles Lakers for the No. 2 slot in the West. Read more: http://sports.espn.go.com/nba/recap?gameId=310411010