MANCHESTER, ENGLAND - OCTOBER 23: Britain's Prime Minister David Cameron and China's President Xi Jinping view the football used in the first World Cup Final during a visit to the City Football Academy on October 23, 2015 in Manchester, England. The President of the People's Republic of China, Xi Jinping and his wife, Madame Peng Liyuan, are paying a State Visit to the United Kingdom as guests of The Queen.  They will stay at Buckingham Palace and undertake engagements in London and Manchester. The last state visit paid by a Chinese President to the UK was Hu Jintao in 2005.  (Photo by Joe Giddens - WPA Pool/Getty Images)