Sultan Al-Alawi (L, bottom)/Mubaraka Al Naimi (R, bottom) of Qatar during the beach tennis Mixed Doubles Round of 32 match between Naoaki Yamamoto/Erina Otsuka of Japan and Sultan Al-Alawi/Mubaraka Al Naimi of Qatar at the 1st ANOC World Beach Games in Doha, capital of Qatar, Oct. 12, 2019. (Xinhua/Nikku)