With another fourth-quarter rally and another clutch bucket from Dirk Nowitzki, Dallas finished off Oklahoma City in five games to reach the NBA Finals for the first time since 2006 and just the second time in club history. Nowitzki and Shawn Marion each scored 26 points in the Mavericks' 100-96 win Wednesday, overcoming a 31-point night by Russell Westbrook and erasing a seven-point Thunder lead with less than six minutes to play.