Top seed and world No. 1 Naomi Osaka will begin her title defense at the U.S. Open with a first-round clash against 93rd-ranked Anna Blinkova of Russia, while seventh seed Kei Nishikori faces a yet-unknown qualifier in his opening match.On Thursday, when the U.S. Open draw was made, eighth-seeded Serena Williams and unseeded Maria Sharapova, both past U.S. Open champions, learned that they will play each other in the first round, their 21st meeting on tour.Osaka beat Williams in last year's women's singles final to become the first major winner from Japan, but the match was marred by contro…READ FULL ARTICLE