In the shot, the new mom is posing with her hand on her hip in a black T-shirt and matching undies, showing off her post-baby body. Williams didn’t caption the post, but fans were quick to tell her she was “looking good” and begging her to “share your secrets!!!”
The 35-year-old athlete previously revealed she was back in her jean shorts just two weeks after giving birth when she captioned a mirror selfie posted on her Snapchat.
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RELATED VIDEO: Serena Williams Reveals She’s Back in Her Jean Shorts Just 2 Weeks After Giving Birth
Ohanian, 34, and the tennis star welcomed his namesake on Sept. 1. They introduced her to the world on Sept. 13, almost two weeks after her birth, with a montage of photo and video moments from Williams’ pregnancy.
In one clip, the new mama admitted that she had “a lot of complications” during her delivery, adding, “But look who we got — we got a baby girl!”
RELATED VIDEO: Serena Williams Gives Birth
Ahead of their daughter’s birth, the couple revealed that they were opting to leave the baby’s sex a surprise, though both shared that they felt they were having a girl.
“[Serena] won the Australian Open while pregnant,” Ohanian said during a talk-show appearance over the summer.
“And she remarked that she feels like it has to be a girl because everything that that baby went through and handled like a champ, only a woman could be strong enough to take on.”