Cibulkova shares she's expecting her first child

On the heels of announcing her retirement last month, Dominika Cibulkova shared some more huge news. The 30-year-old Slovakian is expecting her first child with husband Michal Navara.

The couple have been together nearly a decade, and married in 2016.

Cibulkova also recently released a book, Tenis Je Moj Zivot (Tennis is My Life).

The former world No. 4 retired after 15 years on tour. She won eight WTA titles (her biggest being the WTA Finals in 2016) and reached the Australian Open in 2014.