Unrestricted free agent Dirk Nowitzki agreed to a two-year, $40 million contract with the Dallas Mavericks He had a player option for the 2016-17 season worth $8.6 million on his last contract but declined it to pursue a new deal The second year of this is expected to be a player option In 75 regular-season games last season Nowitzki averaged 18.3 points, 6.5 rebounds and 1.