The tennis great and her husband, Alexis Ohanian, also have a 5-year-old daughter.
"I was so emotionally spent and just like so emotionally drained," the tennis great told the Duchess of Sussex.
Olympia showed off some fancy footwork at an Angel City FC game.
The tennis champ said her daughter Olympia "sure can work that beauty blender."
She says she's "going to explode" if he keeps buying gifts for their daughter.