Serena Williams deleted Snapchat photo which is revealing her pregnancy

World known Tennis superstar "Serena Williams" revealed on Wednesday that she is pregnant, posting a photo of herself in a yellow one-piece bathing suit on the social media site Snapchat with the caption “20 weeks.”The 35-year-old, who will return to the No. 1 ranking in the world next week, deleted the photo shortly after it appeared, and she had not commented further several hours later.