Serena Williams write open letter to her unborn baby, shares new baby bump photo

he professional tennis player broke the internet last week after she revealed  she was 20 weeks pregnant with a photo she posted on her Snapchat.

She shared the new photo above and attached an open letter to her unborn baby. Read after the cut...

"My Dearest Baby,
You gave me the strength I didn't know I had. You taught me the true meaning of serenity and peace. I can't wait to meet you. I can't wait for you to join the players box next year. But most importantly, I am so happy to share being number one in the world with you.... once again today. On @alexisohanian bday. 😉 from the world's oldest number one to the world's youngest number one. -Your Mommy"