Serena Williams isn’t afraid to show her fans that her life isn’t all Grand Slam wins and trophies.

The tennis star, winner of 23 major singles titles, opened up in an emotional Instagram post on Friday that “working and being a mom is not easy.”

“I am often exhausted, stressed, and then I go play a professional tennis match. We keep going. I am so proud and inspired by the women who do it day in and day out,” wrote the 38-year-old in the caption under an image of herself sans makeup and holding her sleeping daughter, Alexis Olympia Ohanian Jr.

“I’m proud to be this baby’s mama,” the post concludes.