Whether she meant to or not, it sure sounds like Venus Williams revealed the sex of sister Serena Williams's baby.

With Serena watching in the stands, hiding her growing baby bump with a white top under a jacket, Venus cruised to a 6-3, 6-1 win over Japan's Kurumi Nara in the second round of the French Open today.

Afterward, Venus referred to Serena's baby as a "she," during an interview with Eurosport, as confirmed by the Daily Mail.

"She's going to call me 'favorite aunt,'" Venus said, while laughing.

Venus seemingly gave away more hints about the baby's gender by saying, "We're always like ... baby V, baby Lyn, baby Isha, we all want the baby to be named after us," referring to herself and her other sisters' names.

So, Serena is having a girl!?

Let's see if Serena confirms via an interview herself or perhaps via a post on one of her social media accounts. 

Remember, the tennis GOAT initially broke the news about her pregnancy on her Snapchat account.

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