The commercial promoting Dallas Mavericks season tickets ends with Dirk Nowitzki looking into the camera before drilling a jump shot and asking, "Do you really think I'm done?" That marketing campaign wasn't the future Hall of Fame power forward's idea, but coming off two down years by his standards, Nowitzki acknowledges the desire to prove he can still perform at the level he has throughout most of his career entering its 16th season. "Yeah, I'd say that," Nowitzki said Tuesday, the day before the Mavs open their season at home against the Atlanta Hawks. "I feel like you can always find something to prove. Us athletes will always find stuff that motivates you. You get here and you're trying to make it, then you're trying to prove yourself. Then you're trying to prove every year you can be an All-Star. Then you're trying to prove you can win a championship. "So there's always something to get you going and you can motivate yourself. I'd still love to show I can play consistent basketball and help the team night in and night out. It's been a long summer of workouts. Hopefully it's going to pay off for me." Read more http://espn.go.com/dallas/nba/story...ki-dallas-mavericks-driven-perform-high-level
