World No. 1 Novak Djokovic says he hopes Covid-19 vaccines will not be mandatory for tennis players on tour.
원문출처 : https://www.cnn.com/2021/04/24/tennis/novak-djokovic-covid-vaccinations-spt-intl/index.html
원문출처 : https://www.cnn.com/2021/04/24/tennis/novak-djokovic-covid-vaccinations-spt-intl/index.html