Naomi Osaka will have to wait until Sunday to begin her Olympic tennis career after her opening match against Chinas Zheng Saisai was delayed for the Japanese world No 2 to light the cauldron at the Tokyo 2020 Opening Ceremony on Friday night.Osaka, who had long been touted to be the face of these Olympics, was confirmed as the final torch bearer and the lighter of the Olympic flame for the much beleaguered Games at the c
