BBC – World number one Roger Federer made the US Open quarter-finals without hitting a ball after opponent Mardy Fish withdrew because of health reasons.
Five-time champion Federer will face Czech sixth seed Tomas Berdych for a place in the semi-finals. Berdych beat Spaniard Nicolas Almagro 7-6 (7-4) 6-4 6-1.
Roger Federer produced a stunning opening performance.
Britain’s third seed Andy Murray was down to play 15th seed Milos Raonic, while 12th seed Marin Cilic was to face Martin Klizan.
Fish missed about two months earlier this season because of an accelerated heartbeat and had a medical procedure in May.
The 30-year-old American’s third-round match against Gilles Simon went five sets, lasting more than three hours and finishing after 1am on Sunday.