Williams appears on the front cover of the Vogue magazine for September, titled: “Serena’s farewell: I’m terrible at goodbyes.”
In a heartfelt Instagram post, the 40-year-old wrote: “There comes a time in life when we have to decide to move in a different direction.
“That time is always hard when you love something so much. My goodness do I enjoy tennis. But now, the countdown has begun.
“I have to focus on being a mom, my spiritual goals and finally discovering a different, but just exciting Serena. I’m gonna relish these next few weeks.”