Hamamoto Yui of Japan serves during the women's singles round of 16 match against her compatriot Ishikawa Kasumi at the 2018 Seamaster ITTF World Tour Platinum China Open in Shenzhen, south China's Guangdong Province, June 1, 2018. Hamamoto Yui lost by 0-4. (Xinhua/Mao Siqian)