Ko Sung Hyun (R) and Kim Ha Na of South Korea compete during the mixed doubles preliminary match against Markis Kido and Pia Zebadiah Bernadeth of Indoneasia at the BCA Indonesia Open 2015 in Jakarta, Indonesia, June 2, 2015. Ko Sung Hyun and Kim Ha Na won 2-0. (Xinhua/Zulkarnain)
