Game 6 of the NBA Finals between the Dallas Mavericks and Miami Heat is previewed. In Game 5, Dirk Nowitzki outplayed LeBron James in the 4th quarter to lead the Mavs to victory. The Heat must play better defense and get James and Wade easier shots near the basket in Game 6 to force a Game 7 back in Miami. Betting trends favor the Mavs against the spread on the road and the over in recent games between the teams in Miami.