Cibulkova calls it quits

Former world No 4 and Australian Open runner-up Dominika Cibulkova announced her retirement on Tuesday.

The 30-year-old Slovakian claimed eight WTA singles titles and entered the top four in 2017. Her biggest title came in 2016 when she defeated then world No 1 Angelique Kerber to win the WTA Finals.

Cibulkova, who has not played since this year's French Open, became the first Slovakian woman to reach a Grand Slam singles final in 2014 when she lost to China's Li Na at the Australian Open.