Okay fine, so the entire world is Serena Williams' biggest fan (it's Serena!), but tennis fans could use a cheering pointer or two from Williams' 15-month-old daughter Olympia.

During an exhibition match between Serena Williams and her sister Venus Williams in Abu Dhabi, little Olympia was caught adorably tracing the tennis ball volley back and forth across the net, and cheering every time a point was scored (whether it was earned by her Mom or Aunt). Watch below!

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The video was shared by Olympia's father (and Serena Williams' husband) Alexis Ohanian—whose lap Olympia is sitting on. She's obviously thrilled for both Mom and Aunt Venus alike (or because she's wearing a Burberry dress) and TBH that smile is so infectious!

All that cheering was apparently exhausting, because Williams shared the below shot of a yawning Olympia from the airport shortly following the match.

So precious!

From: ELLE US
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Holly Rhue
ELLE.com Contributor
Holly Rhue is a writer and editor in New York City.