Iga Swiatek wrapped up a 2-0 victory for Poland over five-time champions Spain to seal their place in the last eight of the Billie Jean King Cup Finals in Malaga. World number two Swiatek beat Spain's Paula Badosa 6-3 6-7 (6-8) 6-1 in the second singles match.

Japan and Slovakia produced stunning comebacks to beat Romania and the United States 2-1, respectively, and reach the quarter-finals of the Billie Jean King Cup on Thursday.

MALAGA, Spain - World number two Iga Swiatek defeated Paula Badosa 6-3, 6-7 (5/7), 6-1 to take Poland into the Billie Jean King Cup quarter-finals on Nov 15, with a 2-0 victory over hosts Spain. Magda Linette put Poland ahead in the tie with a hard-fought 7-6 (8/6), 2-6, 6-4 marathon victory in three hours 51 minutes against Sara Sorribes Tormo.

Slovakia reach the last eight of the Billie Jean King Cup Finals with a 2-1 victory over 18-time champions the United States.

MÁLAGA, Spain - Poland heads into their first-round clash with hosts Spain at the Billie Jean King Cup Finals buoyed by the presence of Iga Swiate

Shuko Aoyama and Eri Hozumi took Japan into the Billie Jean King Cup quarterfinals for the first time since 2013 on Thursday with

Ashlyn Krueger and Taylor Townsend saved six match points but ultimately lost the decisive doubles match as the United States was defeated 6-3, 3-6, 10-8 by Slovakia and was eliminated 2-1 in the first round of the Billie Jean King Cup Finals early Friday.