DETROIT – The Detroit Pistons are inching closer to their final opening roster for the season after waiving LiAngelo Ball, Louis King and Anthony Lamb following Sunday’s preseason game. King signed a two-way deal with the Pistons each of the last two seasons, but only played a total of 62 minutes as a rookie. Lamb signed an exhibit 10 deal with the Pistons earlier this month after going undrafted out of the University of Vermont. -- the Pistons’ roster is now down to 17 players. Unless the NBA alters the number of players allowed on a roster this season, two more will have to be removed from this list.