(Reuters) – World number one Naomi Osaka survived a tough test against Hsieh Su-Wei and eked out a 7-6(3) 5-7 6-2 victory to reach her first ever quarter-final at the Cincinnati Masters on Thursday. FILE PHOTO – Aug 14, 2019; Mason, OH, USA; Naomi Osaka (JPN) serves against Aliaksandra Sasnovich […]