Mark Cuban says Russell Westbrook still won't be superstar unless Thunder win

It will take more than a quarter-season of historic production for Mark Cuban to admit that Oklahoma City Thunder point guard Russell Westbrook has proved him wrong. Cuban, the outspoken Dallas Mavericks owner who declared during last season's playoffs that Westbrook wasn't a superstar, said he still isn't convinced even though Westbrook is on pace to be the first player to average a triple-double since Oscar Robertson in 1962-63.