Top-seeded Alexander Zverev kept his bid for a first US Open title on track with a gritty five-set victory over Quentin Halys, staying the course as a spate of upsets rocked the men’s draw on Thursday. A trio of former women’s champions — Coco Gauff, Iga Swiatek and Naomi Osaka — booked third-round berths, along […] The post Night owl Zverev goes distance…