He had the ball staying very low . Novak Djokovic retains China Open title , beating Rafael González in Sunday 's final . Nadal had toppled Murray from world No . 1 ranking by winning the title match . Djokovic gets revenge for his defeat by Murray in last year 's U.S. Open final . Serena Williams wins 56th title of her career , beating Andrea Jankovic in women 's final .
Novak Djokovic retains China Open title , beating Rafael González in Sunday 's final . Nadal had toppled Murray from world No . 1 ranking by winning the title match . Djokovic gets revenge for his defeat by Murray in last year 's U.S. Open final . Serena Williams wins 56th title of her career , beating Andrea Jankovic in women 's final .