Serena Williams Writes Unborn Child

“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

She added: “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.”

Williams, 35, who last week returned to the number one spot in the new tennis ranking, is expected to deliver her baby in the fall.

She is engaged to Reddit co-founder Alexis Ohanian, who is the father of the child though there is currently no public details as to when or whether they will get married.