Novak Djokovic suffers shock defeat to world No 293 Reilly Opelka in Brisbane International quarter-final | Tennis News

Record 24-time Grand Slam winner Novak Djokovic beaten in straight sets by world No 293 Reilly Opelka ahead of Australian Open which starts on January 12; Watch the United Cup, plus ATP and WTA events Brisbane, Auckland and Hong Kong, live on Sky Sports Tennis this weekend