British number two Dan Evans was outclassed as Swiss great Roger Federer rediscovered his best form to ease into the US Open fourth round.
Federer, 38, played with his trademark fluency in a 6-2 6-2 6-1 victory on Arthur Ashe Stadium.
The third seed had dropped the first sets in both of his previous two matches, but played with a swagger.
Five-time champion Federer, who lost in the last 16 last year, will play David Goffin or Pablo Carreno Busta next.
More to follow.