Slovakia reached the final eight of the Billie Jean King Cup Finals with a 2-1 comeback victory over 18-time champions america.
Taylor Townsend put the US forward with a 7-5 6-4 victory over 17-year-old Renata Jamrichova within the first singles match.
However Slovakia’s Rebecca Sramkova, ranked forty third, prompted an upset when she beat world quantity 11 Danielle Collins 6-2 7-5 to stage the tie and drive a doubles decider.
Tereza Mihalikova and Viktoria Hruncakova joined forces to defeat Townsend and Ashlyn Krueger 6-3 3-6 10-8 to arrange a quarter-final encounter with Australia, who obtained a bye within the first spherical.
Earlier, Japan have been the primary workforce to assert a first-round win as they fought again to beat Romania 2-1 and seal their place within the final eight, the place they may face 2023 runners-up Italy.
The event’s opening tie between Spain and Poland was postponed on Wednesday due to a extreme climate alert.
It has been moved to Friday, with play beginning at 09:00 GMT earlier than Nice Britain face Germany from 16:00.
