The Dallas Mavericks believe they are more than ready to step onto the national stage and show the rest of the country just how well they’ve been performing lately. Armed with three consecutive road wins on this four-game road trip, the Mavs (30-33) will go after the clean sweep at 7 p.m. Thursday when they battle the powerful San Antonio Spurs (49-16) at the AT&T Center on TNT. Counting a win over Houston eight days ago, the Mavs have emerged victorious a season-high-tying four games in a row. But the Spurs, they know, will be tough. “They’re one of the better teams in the Western Conference and in the whole NBA this year, and they’re always one of the toughest teams to play against, especially at home,” point guard Mike James said. “But we’re on a mission right now and they’re just in the way.” So far this season, the Spurs have had their way with the Mavs. In Dirk Nowitzki’s first game of the season, the Spurs led by 46 points in an eventual 129-91 triumph on Dec. 23 in San Antonio. On Dec. 30, the Spurs traveled to Dallas and again humbled the Mavs 111-86. Also in Dallas, the Spurs ran their record over the Mavs this season to 3-0 when they eked out a 113-107 victory on Jan. 25. “They’re always tough,” Nowitzki said. “For some reason against us they always play their best game.”