Novak Djokovic of Serbia signs autographs for young competitors after a match at the 18th Annual Arthur Ashe Kids' Day at the USTA Billie Jean King National Tennis Center in New York City, the United States, on Aug. 24, 2013. [Photo/Xinhua]
An unusually heavy downpour hit Durban for two days before the BRICS summit's debut on African soil, but interest for a better platform for emerging markets were still sparked at the summit.