Serena Williams posed with the Daphne Akhurst Trophy alongside her sister Venus on day 13 of the 2017 Australian Open at Melbourne Park in Melbourne, Australia. Serena regained her title after losing last year. Photo: Clive Brunskill/Getty Images
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Serena waved to a cheering crowd as she left the court with her trophy. The athlete won the Women's Singles Final against her sister Venus in the 2017 Australian Open. Photo: Scott Barbour/Getty Images
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Serena took to Instagram to express her gratitude for her sister Venus. The tennis star wrote: "The top is never lonely when your best friend @venuswilliams is there. Here's to #23. What a night for our family." Photo: Instagram/@serenawilliams
