Tennis superstar, Serena Williams, has reportedly put to bed as she welcomed her first child with Reddit tech boss Alexis Ohanian.

It all started on Friday when reports emerged that the champion was in labour with Florida reporter, Chris Shepherd, later confirming the speculation by announcing the birth on his Twitter.

Shepherd tweeted: “Tennis star Serena Williams gives birth to a baby girl weighing 6 pounds, 13 ounces. Mom and baby doing well.” Shepherd disclosed his information source as an anonymous hospital source.

Serena, 35, was reportedly admitted to St. Mary’s Medical Center in Palm Beach, Florida on Wednesday and induced on Thursday night.

She and her fiance Alexis, who became engaged last year, have yet to comment on news of the birth of their baby girl.

Serena accidentally announced her pregnancy earlier this year (17) on social media after hitting the wrong button on Snapchat.

“I didn’t tell a lot of people to be quite honest and I’d been saving it (the news),” she explained in an interview with Gayle King in April. “And you know how social media is when you press the wrong button…and…

“My phone doesn’t ring that much, and thirty minutes later I missed like four calls and I’m like, ‘that’s weird,’ and then I picked it up and I was like, ‘oh no!’”