Japan's Koki Niwa fended off Germany's Dimitrij Ovtcharov 4-3 to advance to the men's singles quarterfinals at the world championships on Sunday.Niwa, ranked 11th in the world, defeated No. 5 Ovtcharov 11-13, 11-9, 11-13, 12-10, 11-5, 9-11, 11-9 and will face second-ranked Fan Zhendong of China in their quarterfinal later in the day.In another quarterfinal, Japanese 13-year-old Tomokazu Harimoto will take on China's world No. 3, Xu Xin.Prior to those matches, the men's doubles final will see the top seed, Masataka Morizono and Yuya Oshima of Japan, take on the 17th-seeded pair, Fan and Xu.M…READ FULL ARTICLE
