WTA releases 2020 tournament calendar - China.org.cn
wta on Twitter: "All seven WTA tournaments that were scheduled in China on WTA's 2020 provisional calendar will not be held ---> https://t.co/IJ5loZWicp https://t.co/pybLjofLmi" / Twitter
Women's Tennis Calendar Disrupts as 2020 WTA Finals in Shenzhen Is Called Off - EssentiallySports
Canceled Tournaments in China Are a Big Blow to Women's Tennis - The New York Times
WTA announces calendar for first six months of 2022 season
2020 WTA Tour - Wikipedia
Official! Australian Open in February: Updated 2021 ATP and WTA calendar - Tennis Majors