Kei Nishikori and Naomi Osaka reached the second round of the U.S. Open with straight-sets wins in their respective men's and women's first-round singles matches on Tuesday.World No. 19 Nishikori beat Germany's Maximilian Marterer, ranked 50th, 6-2, 6-2, 6-3 in their first match to set up a second-round clash with Gael Monfils of France on Friday at the USTA Billie Jean King National Tennis Center.Nishikori, a finalist in 2014 and a semifinalist in 2016, said he played a "perfect game" against the 191-centimeter tall left-hander, winning four straight games in the opening set and playing ag…READ FULL ARTICLE
