In-form Coco Gauff serves notice with assured start to US Open title pursuit

Gauff tops Sonmez 6-3, 6-4 in first-round matchAmerican saves three break points in pivotal holdFourth seed also has world No 1 ranking in sightCoco Gauff returned to the scene of her grand slam breakthrough on a rain-lashed Tuesday night and safely cleared the first hurdle toward another, launching her pursuit of a second US Open title in four years with a 6-3, 6-4 win over Turkeys Zeynep Sonmez beneath the closed roof of Arthur Ashe Stadium.The 22-year-old American, seeded fourth in New York, ...