The legendary Serena Williams has admitted that she won the Australian Open in 2017 while pregnant

The 23-time Grand Slam champion in women's singles and former world No. 1, American tennis player Serena Williams, revealed how she told her eldest daughter Olympia that she was pregnant during her victory at the Australian Open in 2017.

"Olympia is now at the age where she asks: Mom, I'm curious, why are you so famous? I understand that you're a great tennis player. And I told her that actually she was inside me when I won the Australian Open in 2017. She was really surprised. Now she's at an age where I can open up to her a little more," Williams told People.

Serena Williams is a 23-time Grand Slam singles champion and a four-time Olympic gold medalist (one title in singles).

The Australian Open 2017 is the last Grand Slam tournament conquered by the legendary tennis player.