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

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

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Reports emerged earlier Friday that the tennis superstar was in labor at St. Mary's Medical Center in West Palm Beach, Florida. WPEC reported that she checked into the hospital Wednesday and labor was induced Thursday night.

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.

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Helen Gilbert places flowers on her brother Eurie Martin’s grave at Camp Spring Baptist Church in Sandersville. Her brother died eight years ago. Three former Washington County deputies are accused of causing his death and are set to stand trial Monday. (Miguel Martinez/AJC)

Credit: Miguel Martinez-Jimenez