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.

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.

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.