The Fed Cup by BNP Paribas World Group semifinals are taking place this weekend (21-22 April) as Russia, Serbia, Czech Republic and Italy all bid to reach the Final.
Russia, last year's runners-up, are hosting Serbia in Moscow where an indoor clay court has been laid at the Sports Palace "Megasport", while Czech Republic continue their title defence against Italy on an indoor hard court at the CEZ Arena in Ostrava.
The World Group and World Group II play-offs are also being staged at different locations around the world as the competing nations either continue their quest for promotion or fight against relegation.
You can follow all the action on the official Fed Cup website, which has live scores, reports, interviews, photos, blogs and more.
You can also watch live streaming of the World Group quarterfinals, plus two Zone Group ties, on the official Fed Cup video website.
World Group semifinals
Russia v Serbia - Sports Palace "Megasport", Moscow
Czech Republic v Italy - CEZ ARena, Ostrava
World Group play-offs
Ukraine v USA - Superior Golf & Spa Resort, Kharkiv
Japan v Belgium - Ariake Coliseum, Tokyo
Spain Slovak Republic - Club de Tenis Puente Romano, Marbella
Germany v Australia - Porsche Arena, Stuttgart
World Group II play-offs
France v Slovenia - Palais des Sports, Besancon
Switzerland v Belarus - Complexe Sportive des Iles, Yverdon-les-Bains
Sweden v Great Britain - Borashallen, Boras
Argentina v China, P.R. - Parque Roca, Buenos Aires