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.

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

Polish superstar Iga Swiatek has beaten Paula Badosa in three sets to lead her side to victory over hosts Spain in the Billie Jean King Cup Finals in Malaga.

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.