Debutante Dominika Cibulkova will meet world number one Angelique Kerber in Sunday’s final at the WTA Finals in Singapore.
The Slovak showed great determination to beat Russian Svetlana Kuznetsova 1-6 7-6 (7-2) 6-4.
Kerber, the Australian Open and US Open winner, was too strong for defending champion Agnieszka Radwanska.
The German dominated for a 6-2 6-1 victory over the Pole to make it six wins apiece in their head-to-heads.
After a disappointing first set, in which Cibulkova trailed 4-1 after being broken twice in her first three service games, the world number eight showed far more intensity in the second set.
She improved her first-serve percentage dramatically from 42% to 79% with Kuznetsova, who was in superb form in the opening set, happy to sit back and wait for any opportunities.
Cibulkova, making her first appearance at the elite eight-player event, squandered chances to secure the second set while serving at 5-4 and 6-5 but in the tie-break she recovered quickly to set up four set points and level the match.
Kuznetsova, 31, took a 10-minute break at the end of the second set to change her kit but while it initially did not appear to unsettle Cibulkova, who broke to go 2-0 up, she again was unable to take advantage of the break.
Two-time Grand Slam tournament winner Kuznetsova won the next four games to lead 4-2, only for a gutsy Cibulkova to roar back with four straight games of her own to clinch a place in the final.
Article source: http://www.bbc.co.uk/sport/tennis/37809638