Serena Williams twins with 3-year-old daughter as she makes mini replica of iconic Australian Open outfit

She's become known for her striking tennis outfits as well as her sporting abilities. 

And Serena Williams, 39, had one of her custom looks replicated into an adorable mini version for her daughter Olympia, three. 

In an Instagram post on Wednesday, the toddler melted hearts as she mimicked her mother while practising her serves in a replica of Serena's catsuit from the Australian Open, the Daily Mail reports.

Serena had everyone talking when she donned the one-legged suit at the Open in February, which featured a bold design and colourful blocking. 

Olympia wanted to look just like her mum as she too donned the outfit while posing with a tennis racket in the snap, which was captioned: 'Practice makes....' 

Although the outfit was Serena's idea, she revealed that husband Alexis Ohanian, 38, was behind the post, and wasn't too impressed with the execution.