Classic Novak! During his US Open opener, the Djoker got into a heated debate with the chair umpire over a time violation, but the real highlight? A young fan in the stands tried to distract him, waving a cap and calling out while Novak was locked in. Even with all eyes on the 24-time Slam champ chasing No. 25, this kid’s antics had everyone smiling. Only at Flushing Meadows do you get this kind of off-court rivalry! #Sports #Tennis #Djokovic