Serena Williams pens note to her unborn baby as she celebrates her fiance

The professional tennis player broke the internet last week after she revealed she was 20 weeks pregnant with a photo she posted on her Snapchat. The US tennis star who returned to the world number one spot in the latest WTA rankings released today shared a new photo showing off her bump 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"

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

A post shared by Serena Williams (@serenawilliams) on Apr 24, 2017 at 6:06am PDT