British teenager Emma Raducanu thrashed Spain's Sara Sorribes Tormo to set up a potential US Open last-16 match with top seed Ashleigh Barty.
Raducanu, 18, won 6-0 6-1 against world number 41 Sorribes Tormo as her overseas Grand Slam debut continued with an extraordinary win in New York.
It was the biggest win by ranking of Raducanu's fledging career.
She will face Barty on Monday if the Australian world number one beats Shelby Rogers later on Saturday.
