In town for the Mubadala World Tennis Championship (MWTC), the sisters went head-to-head, marking the first time the pair have competed against each other in the emirate.
However, it wasn’t Serena or Venus that stole the spotlight during the match.
Serena and Alexis Ohanian’s baby girl, Alexis Olympia Ohanian, was spotted sitting in the crowds and cheering on her mum (and in this case, her auntie).
Wearing a mini Burberry dress, their baby girl was captured tracing the tennis ball back and forth across the net, and every time a point was scored, cheering and clapping along.
Take a look here…
Now, take a look at where Serena Williams ranked on Lyst’s list of the most influential women on Instagram.