Former World No.1 Simona Halep was knocked out in the first round on Monday, losing to Ukrainian qualifier Daria Snigur. The 124th-ranked Snigur, making her Grand Slam main draw debut, won 6-2, 0-6, 6-4 against the two-time major winner who came into New York having won the prestigious Toronto title. 

Snigur, wearing a ribbon in the colors of Ukraine on her shirt, will face Magdalena Frech of Poland or Canada’s Rebecca Marino for a place in the last 32.