Despite a quick ascent to global superstar status, the 23-year-old is staying humble and looking ahead to her next challenge: Ending her struggles away from the hardcourt.
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Japan COVID-19 vaccine chief warns of slower pace of shots for elderly
Taro Kono said supply of the vaccine "will be very limited until April," and that the government "will start (vaccinations of older people) little by little and expand it slowly."