Iga Swiatek and Magda Linette won singles matches to lead Poland to a 2-0 victory over host Spain on Friday to clinch a spot in the quarterfinals of the Billie Jean King Cup.

Great Britain also advanced with a 2-0 victory over Germany at Malaga, Spain. Emma Raducanu and Katie Boulter won singles matches for the Brits.

Swiatek held a 34-18 edge in winners during her 6-3, 6-7 (5), 6-1 clinching win over Spain's Paula Badosa. Earlier, Linette won a marathon match that took three hours and 51 minutes, using a 55-12 advantage in winners to post a 7-6 (6), 2-6, 6-4 victory over Sara Sorribes Tormo.

Raducanu racked up 10 aces while notching a 6-4, 6-4 victory over Germany's Jule Niemeier. Boulter followed by converting 5 of 7 break points during a 6-1, 6-2 victory over Laura Siegemund.

Poland will meet the Czech Republic in the quarters. Great Britain faces defending champion Canada.

--Field Level Media