You don’t get to GOAT status — or 23 Grand Slam championships — without having a little discipline, and it turns out Serena Williams uses that same mindset in parenting. The retired tennis pro just shared the one reason it’s so “difficult” to leave her daughters Olympia, 8, and Adira, 2, who she shares with husband Alexis Ohanian, for work, and it’s inspirational.

In an interview with PEOPLE at the Baby2Baby Gala on Saturday, Williams revealed, “Well, tonight was definitely a little more difficult. I don’t like to leave my kids.”

The reason why? Their strict bedtime ritual. “I have a nighttime routine with them every day,” she revealed.

Talk about being a parenting pro! Nighttime routines are so beneficial for kids (and grown-ups), as quality sleep improves happiness, alertness, cogniti

See Full Page