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 launched her pursuit of a second US Open title in four years with a 6-3, 6-4 win over Turkey’s Zeynep Sonmez beneath the closed roof of Arthur As...