Defending Champion Naomi Osaka Toughs Out Three-set Win; Dominic Thiem, Stefanos Tsitisipas, Karen Khanchanov Lose in First Round of US Open   (August 27, 2019) FLUSHING MEADOWS, NY - Naomi Osaka was off to a shaky start of her title defense on Tuesday at the US Open. The world No. 1 had to fight off a tough Anna Blinkova, ranked 84th in the world 6-4, 6-7 (5), 6-2 … [Read more...] about Defending Champion Naomi Osaka Toughs Out Three-set Win; Dominic Thiem, Stefanos Tsitisipas, Karen Khanchanov Lose in First Round of US Open