Knight's official sent birthday wishes for JR Dispatch of sina sports Beijing time on September 10, according to U.S. media reports, today is the cavaliers free-agent J.R. Smith's 31st birthday, and the cavaliers also through their official social media for JR sent birthday wishes. The cavaliers on IG drying out a JR today o 'brien cup photos in hand, and I wish him a happy birthday. It is worth mentioning that in recent...