Amanda Anisimova of the United States returns a shot during the women's singles second round match between Amanda Anisimova of the United States and Karolina Pliskova of Czekh at the 2019 WTA Wuhan Open tennis tournament in Wuhan of central China's Hubei Province, on Sept. 24, 2019. (Photos: Xinhua)

Karolina Pliskova of Czech Republic returns a shot during the women's singles second round match between Amanda Anisimova of the United States and Karolina Pliskova of Czekh at the 2019 WTA Wuhan Open tennis tournament in Wuhan of central China's Hubei Province, on Sept. 24, 2019.

Amanda Anisimova of the United States returns a shot during the women's singles second round match between Amanda Anisimova of the United States and Karolina Pliskova of Czekh at the 2019 WTA Wuhan Open tennis tournament in Wuhan of central China's Hubei Province, on Sept. 24, 2019.

Karolina Pliskova of Czech Republic returns a shot during the women's singles second round match between Amanda Anisimova of the United States and Karolina Pliskova of Czekh at the 2019 WTA Wuhan Open tennis tournament in Wuhan of central China's Hubei Province, on Sept. 24, 2019.