China’s teenage swim sensation Yu Zidi completed a golden Asian Games debut with a record-setting victory in the women’s 200 metres butterfly in Japan on Sunday. Pan Zhanle followed shortly after and proved he was still the best 100m freestyle swimmer after storming back from behind to defend the title he won in Hangzhou. The 13-year-old Yu led from start to finish at the Tokyo Aquatics Centre, as China’s dominant swimmers added more gold to a day that had quickly become full of it. Yu’s time of...