“Welcome, Adira River Ohanian,” the caption read. “I'm grateful to report our house is teaming with love: a happy & healthy newborn girl and happy & healthy mama. Feeling grateful. @serenawilliams you've now given me another incomparable gift — you're the GMOAT. Thanks to all the amazing medical staff who took care of my wife & our daughter [prayer emoji] I'll never forget the moment I introduced @olympiaohanian to her baby sister.”
This is the second child between Williams and Ohanian, who welcomed their daughter, Alexis Olympia Ohanian Jr. (who goes by Olympia), in Sept. 2017. Two months later, Williams and Ohanian tied the knot in New Orleans, after a nearly year-long engagement.
Since Olympia's birth, the couple have run an Instagram account for their eldest, where they share images from all of her adventures. Now, we'll be curious to see if they do the same for the latest addition to their family.