richard williams & baby*If you’ve been wondering what Serena and Venus Williams‘ little 7-month-old baby brother Dylan looks like, we’ve got the goods.

Little Dylan made his debut while big sis Serena played at the Sony Open in Key Biscane, Florida, according to Jose Lambiet’s Gossip Extra.

Her elderly dad Richard watched Serena dispatch hapless Italian Flavia Pennetta in the second round Thursday in Key Biscayne with the baby in his arm and wife Lakeisha by his side.

And fans noticed, even if the boy didn’t seem too impressed with his big sis prowess and legendary grunts: He fell asleep several times in the warm lunchtime sun.

The photos are some of the first of the 71-year-old Richard’s baby.

Gossip Extra broke the story last year: Lakeisha gave birth about the time that Serena won the US Open — and for some reason, both Serena and sister Venus Williams did their darnedest to keep the new arrival secret from the public for months.

Oh well, with the pics out, the secret is no longer a secret.

richard williams & baby & wife

Richard Williams, baby Dylan & wife Lakeisha