Naomi Osaka said Monday she felt a "sense of duty" to Japan when she was offered the chance to light the Olympic cauldron at last week's Tokyo Games opening ceremony, now she has zeroed in on finishing the job on the tennis court.Making her Olympic debut in Tokyo, Osaka's image was instantly etched into Japanese sporting history when she appeared on screen as the last person to carry the Olympic flame at the spectator-free National Stadium.Asked about the experience following her second-round victory in the women's singles, Osaka said she understands the gravity of the "really big honor," g…READ FULL ARTICLE