Watch out, world! We may have another Serena Williams on our hands. The 23-time grand slam champion took her two-year-old daughter, Olympia, out on the tennis court to do some drills ahead of the July 4th weekend and she looked like a little mini-me! The mother/daughter duo matched, dressed in tight purple Nike onesie for their lesson on Thursday, July 2. Lucky for fans, Serena Williams documented their adorable day on the court which ended in the two-year-old basically copying her all-star mama's pro moves.