Japan's Moyuka Uchijima went down to Paris Olympics gold medalist Zheng Qinwen of China 7-5, 6-0 in the second round of the Pan Pacific Open tennis tournament on Thursday.Women's world No. 57 Uchijima, Japan's highest-ranked player here after Naomi Osaka pulled out injured, tested the tournament's top seed in the first set but failed to maintain that level of play against her seventh-ranked opponent at Tokyo's Ariake Colosseum."I like to play here because two years ago I made the final," said the 22-year-old Zheng, in reference to her 7-5, 7-5 defeat against Liudmila Samsonova of Russia in …READ FULL ARTICLE