Tennis: Naomi Osaka giving up US citizenship to play for Japan in 2020 Olympics - CNA
Naomi Osaka picks Japanese citizenship with eye on Olympics: NHK | Tennis News - Times of India
Osaka giving up U.S. citizenship to play for Japan in 2020 Olympics - media | Euronews
Naomi Osaka Picks Japanese Citizenship with Eye on 2020 Olympics: Reports - News18
Osaka giving up U.S. citizenship to play for Japan in 2020 Olympics: media