The Memphis Grizzlies wanted to make sure they maintained the momentum they had before the All-Star break. They did it by turning back the defending champion Mavericks on Wednesday night -- albeit with Dallas getting little production from Dirk Nowitzki, who left with a balky back. Marc Gasol had 22 points and 11 rebounds, and Mike Conley added 20 points and 10 assists as the Grizzlies won 96-85 in their first game after the All-Star break.