Cibulkova upsets Kerber to win WTA Finals title
WTA Finals debutante Slovakia's Dominika Cibulkova defeated current world number one, Germany's Angelique Kerber 6-3, 7-6, to win her maiden year-end WTA Finals title in Singapore on Sunday. This was the Slovak's fourth title win of her most consistent season and is set to rise to a career-best world number five in the refreshed WTA rankings.