Fiji’s prime minister, Sitiveni Rabuka, has said he was forced to cancel an official visit to China after falling and hurting his head. The visit had been announced on Tuesday by the Chinese embassy in Fiji, which said Rabuka would attend the opening of the World University Games in Chengdu alongside the Chinese president, Xi Jinping. Rabuka, elected in December, said he had been forced to cancel the visit after tripping on the stairs while looking at this phone, resulting in an injury to his head. “I’ve just come back from the hospital where I had a dressing put on…