Sara Errani romped to a 6-1 6-1 win over Alisa Kleybanova in Cagliari to hand Italy their third Fed Cup title in five years.
Roberta Vinci won a three hour, 13 minute marathon against Russia's Alexandra Panova as Italy grabbed a 2-0 lead in the Fed Cup final on Saturday.
Irina Khromacheva took to Twitter to express her delight at being in Russia's team to face Italy in the Fed Cup final.
Li Na overpowered back-injury victim Victoria Azarenka 6-2 6-1 to power through to the semi-finals at the WTA Championships.
Round-robin formats at tennis tournaments can cause confusion but Serena Williams has an easy solution, just keep winning.
Serena Williams cruised to a straight sets 6-2 6-4 win against Agnieszka Radwanska at the WTA Championships.
Serena Williams showed her desire to defend her WTA Championships title by sweeping to a 6-3 6-1 win over Angelique Kerber.
Serena Williams aims to claim her 11th tournament trophy to round off one of the best years of her career.
Angelique Kerber has clinched the final spot at the WTA's season-ending championships after reaching the Linz Open semis.
WTA rankings on Monday (Last week's positions in brackets):
Maria Sharapova has withdrawn from the season-ending WTA Championships in Istanbul due to a shoulder injury.
Round-up: Li Na overcame Germany's Sabine Lisicki 7-5 6-4 to reach the quarter-finals of the China Open on Wednesday.
ATP World Tour Finals
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