Updated: After retiring vs Kerber, Hercog defends choice

NEW YORK — The Latest on the U.S. Open (all times local): 2:45 p.m. Polona Hercog says she had been sick for several days before her first-round U.S. Open match, in which she retired after suffering from dizziness and cramping. The 120th-ranked Slovenian was trailing 6-0, 1-0 to second-seeded Angelique Kerber on Monday. Hercog says […]