he defeated ukrainian alexandr dolgopolov. and it was fast too.one hour and 41 minutes from first serve to match point. the spaniard won 6—2, 6—4, 6—1. the 15—time grand slam champion hasn't made the us open last eight since capturing the 2013 title. he returned to the top world ranking last month for the first time since 2011. nadal will next face the russian teenager andrey rublev. he beat ninth seed david goffin 7—5, 7—6, 6—3, to become the youngest man to reach the us open quarter—finals since andy roddick in 2001. top women's seed, karolina pliskova, and last year's runner—up, needed just 46 minutes to sweep past usa'sjennifer brady 6—1, 6—0. it's pliskova's third slam quarter—final this year. i was just saying, like, i wasjust saying, like, my i was just saying, like, my first good match, my best this year. it was not the best today. she can definitely play better than today. she was kind of nervous. she didn't feel well. nothing has changed on my game to date is be so, it was really good. -- today. pliskova will next face us 20th seed coco