Chicago Bulls head coach Billy Donovan is not sure when Josh Giddey will return to NBA action. (AP PHOTO)Chicago Bulls head coach Billy Donovan is not sure when Josh Giddey will return to NBA action. Norman Powell scored 21 points and Bam Adebayo had 20 points and 12 rebounds for the Heat. Flagg, who turned 19 in December, broke the NBA record for points in a game by a teenager. Brandon Miller scored 23 points, his ninth straight game with at least 20 points, for Charlotte.