US Open tennis: Fritz, Cobolli, Keys tumble out; Gauff, Swiatek, Andreeva advance - as it happened

Taylor Fritz and Flavio Cobolli lost from winning positions, Madison Keys collapsed from 5-0 up in the final set, but Coco Gauff, Iga Swiatek and Mirra Andreeva reached the last 16Last night Serena and Venus Williams - with their combined age of 456 - blew a five-point lead in the deciding tie-break as their return to the grand slam doubles stage ended in defeat, 6-3, 6-7 (6), 7-6 (7) against Chan Hao-ching and Maya Joint. Serena must be sick of the sight of Joint - given her singles comeback wa...