Emma Raducanu makes a winning return from injury before Katie Boulter secures Great Britain's place in the Billie Jean King Cup quarter-finals.

Poland's world number two Iga Swiatek beat Paula Badosa 6-3 6-7(5) 6-1 to knock out hosts Spain 2-0 and book her country a spot in the Billie Jean King Cup quarter-finals on Friday. Poland will face Czech Republic on Saturday following a gutsy performance by Swiatek after Magda Linette had won a tight contest 7-6(6) 2-6 6-4 against Sara Sorribes Tormo.

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.

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

Katie Boulter eases past Germany's Laura Siegemund with a straight sets win to put Great Britain into the Billie Jean King Cup quarter-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.

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.