They keep twinning! Serena Williams and her daughter Alexis are a dynamic duo

She may have earned her way into tennis history with a record of 23 Grand Slam singles titles under her belt, but according to Serena Williams, being a mom has been her "greatest accomplishment."

Williams has been keeping her fans up to date with regular posts to Instagram, including sharing her most adorable moments with daughter, Alexis. 

And according to the tennis champ, her daughter's fully in the mommy phase. 

"This little baby girl pretty much loves doing everything I do," she said in a video of the two during their morning routine. 

Recently, she posted her daughter practising alongside her mom on the tennis court and clearly we may be seeing the tot following in her moms sporting footsteps in the not too distant future.  

But twinning is nothing new for the dynamic mommy-daughter duo. Here's a look at all the times Alexis has been her mom's mini-me: 

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