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British Prime Minister Theresa May (Front, R), Prince William (Front, C), Duke of Cambridge, and his wife Catherine(Front, L), Duchess of Cambridge, are seen during the men's singles final match between Novak Djokovic of Serbia and Kevin Anderson of South Africa at the Wimbledon Championships 2018 in London, Britain, on July 15, 2018. (Xinhua/Guo Qiuda)
