Luka Doncic Hand Signed 2020 NBA All Star Game Spalding Official NBA Game Basketball. Luka Doncic signed this ball in bold silver and inscribed "1st ASG 2020". Limited edition basketball #5/20... rare inscriptions! 2020 NBA All Star Game Chicago logo on the ball. Official Leather game ball. Doncic is the point guard on the Dallas Mavericks and is one of the biggest stars in basketball currently. Comes in original box that we show in photos. Fanatics hologram verifies authenticity and can be searched on their website. See screenshot in listing photos.