Adriana Diaz of Puerto Rico celebrates after the table tennis women's singles final between Adriana Diaz of Puerto Rico and Wu Yue of the United States at Pan American Games 2019 in Lima, Peru on Aug. 7, 2019. (Xinhua/Xin Yuewei)

Adriana Diaz of Puerto Rico poses during the awarding ceremony after the table tennis women's singles final between Adriana Diaz of Puerto Rico and Wu Yue of the United States at Pan American Games 2019 in Lima, Peru on Aug. 7, 2019. (Xinhua/Xin Yuewei)

Gold medalist Adriana Diaz (2nd L) of Puerto Rico, silver medalist Wu Yue (1st L) of the United States, bronze medalists Melanie Diaz (2nd R) of Puerto Rico and Bruna Takahashi (1st R) of Brazil pose during the awarding ceremony after the table tennis women's singles final between Adriana Diaz of Puerto Rico and Wu Yue of the United States at Pan American Games 2019 in Lima, Peru on Aug. 7, 2019. (Xinhua/Xin Yuewei)

Wu Yue of the United States serves during the table tennis women's singles final between Adriana Diaz of Puerto Rico and Wu Yue of the United States at Pan American Games 2019 in Lima, Peru on Aug. 7, 2019. (Xinhua/Xin Yuewei)

Adriana Diaz of Puerto Rico serves during the table tennis women's singles final between Adriana Diaz of Puerto Rico and Wu Yue of the United States at Pan American Games 2019 in Lima, Peru on Aug. 7, 2019. (Xinhua/Xin Yuewei)

Yue Wu of the United States returns the ball during the table tennis women's singles final between Adriana Diaz of Puerto Rico and Wu Yue of the United States at Pan American Games 2019 in Lima, Peru on Aug. 7, 2019. (Xinhua/Xin Yuewei)