Tennis champion Serena Williams and her fiance, Reddit co-founder Alexis Ohanian, have welcomed their first child.

The Palm Beach Post reported a source close to Williams confirmed the two welcomed a baby girl Friday.

Williams, 35, checked into St. Mary's Medical Center in Palm Beach, Fla. on Wednesday and had an entire floor cleared to ensure maximum privacy for Williams, according to The Daily Mail. Labor was induced Thursday night.

Williams announced her pregnancy in April.

Beyonce was one of the first to congratulate Williams, posting a message to her on Instagram.

Williams had a baby shower Aug. 4. More than 70 of her friends -- including sister Venus Williams, singers Kelly Rowland and Ciara and actresses Eva Longoria and LaLa Anthony were in attendance.

Serena Williams and fiance Alexis Ohanian.
icon to expand image