Novak Djokovic of Serbia hits a return against John Isner of the US during their quarter-final men’s singles match at the China Open tennis tournament in Beijing on October 9, 2015. AFP PHOTO
BEIJING: Novak Djokovic’s China Open charge showed no sign of slowing as he destroyed towering American number one John Isner 6-2, 6-2 to reach the semifinals in a lightning 52 minutes on Friday (Saturday in Manila).