Kim Song I of the Democratic People's Republic of Korea (DPRK) returns the ball during the match of women's singles against Li Jie of the Netherlands at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Kim Song I won 4-1. (Photos: Xinhua)

Li Jie of the Netherlands returns the ball during the match of women's singles against Kim Song I of the Democratic People's Republic of Korea (DPRK) at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Li Jie lost 1-4.

Meshref Dina of Egypt returns the ball during the match of women's singles against Samara Elizabeta of Romania at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Meshref Dina lost 3-4.

Samara Elizabeta of Romania returns the ball during the match of women's singles against Meshref Dina of Egypt at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Samara won 4-3.

Wu Yue of the United States returns the ball during the match of women's singles against Bernadette Szocs of Romania at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Wu Yue lost 2-4.

Lay Jian Fang of Australia returns the ball during the match of women's singles against Zhang Mo of Canada at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Lay Jian Fang lost 3-4.

Chen Szu-Yu of Chinese Taipei returns the ball during the match of women's singles against Elizabeta Samara of Romania at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Samara won 4-3.

Bernadette Szocs of Romania returns the ball during the match of women's singles against Wu Yue of the United States at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Szocs won 4-2.

Elizabeta Samara of Romania returns the ball during the match of women's singles against Chen Szu-Yu of Chinese Taipei at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Samara won 4-3.

Zhang Mo of Canada returns the ball during the match of women's singles against Lay Jian Fang of Australia at the 2018 ITTF Women's World Cup in Chengdu, China, Sept. 28, 2018. Zhang Mo won 4-3.