Xu Xin (L) and Zhu Yuling of China compete during the mixed doubles semifinal match against Lin Yun-Ju and Cheng I-Ching of Chinese Taipei at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Xu Xin and Zhu Yuling won 3-0. (Photos: Xinhua)

Xu Xin (L) and Zhu Yuling of China compete during the mixed doubles semifinal match against Lin Yun-Ju and Cheng I-Ching of Chinese Taipei at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Xu Xin and Zhu Yuling won 3-0.

Tomokazu Harimoto and Hina Hayata (R) of Japan celebrate during the mixed doubles semifinal match against Fan Zhendong and Ding Ning of China at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Fan Zhendong and Ding Ning (L) of China compete during the mixed doubles semifinal match against Tomokazu Harimoto and Hina Hayata of Japan at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Tomokazu Harimoto (R) and Hina Hayata of Japan celebrate during the mixed doubles semifinal match against Fan Zhendong and Ding Ning of China at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Tomokazu Harimoto and Hina Hayata (L) of Japan react after the mixed doubles semifinal match against Fan Zhendong and Ding Ning of China at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Tomokazu Harimoto (R) and Hina Hayata of Japan celebrate after the mixed doubles semifinal match against Fan Zhendong and Ding Ning of China at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Tomokazu Harimoto (R) and Hina Hayata of Japan react after the mixed doubles semifinal match against Fan Zhendong and Ding Ning of China at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Fan Zhendong (R) and Ding Ning of China compete during the mixed doubles semifinal match against Tomokazu Harimoto and Hina Hayata of Japan at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Tomokazu Harimoto and Hina Hayata (R) of Japan compete during the mixed doubles semifinal match against Fan Zhendong and Ding Ning of China at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.

Fan Zhendong (R) and Ding Ning of China react during the mixed doubles semifinal match against Tomokazu Harimoto and Hina Hayata of Japan at ITTF World Tour Platinum Japan Open in Sapporo, Japan, on June 15, 2019. Tomokazu Harimoto and Hina Hayata won 3-1.