Spain reached the Billie Jean King Cup semi-finals for the first time since 2008 after edging Kazakhstan 2-1 in a dramatic quarter-final in Shenzhen. Cristina Bucsa played a decisive role in the tie, returning to the court for the deciding doubles match shortly after losing her singles contest to Yulia Putintseva. Bucsa partnered Sara Sorribes Tormo to defeat Anna Danilina and Zhibek Kulambayeva 6-2, 7-5, securing Spain's place in the last four.