Costeen Hatzi led the charge of glamorous WAGs attending the Australian Open Bondi Sands event at the Royal Botanic Gardens on Monday.
The 24-year-old looked casually chic in a fitted white, sporty mini dress with short sleeves that placed her trim pins on display.
She added a pair of pointed white heels and a smattering of gold accessories including a watch and bracelet.
Costeen opted for a bronzed makeup palette with hints of highlighter and a nude lip gloss.
She wore her brunette locks down in waves and carried a black designer shoulder bag.
She was joined at the event by Morgan Riddle who also chose white, wearing a halter neck maxi dress.
Costeen Hatzi (pictured) led the charge of glamorous WAGS attending the Australian Open Bondi Sands event at the Royal Botanic Gardens on Monday
The 24-year-old looked casually chic in a fitted white, sporty mini dress with short sleeves that placed her trim pins on display
She added a pair of pointed white heels and a smattering of gold accessories including a watch and bracelet
She added a pair of white heels with a pointed design and kept her accessories to a pair of dainty earrings and a bracelet.
The blonde beauty’s red manicure stood out, and she chose a clean makeup look with a pink nude lipstick.
The stunner wore her flaxen locks in a partially pulled back do with some loose strands around her face.
Likewise making a night of it was MasterChef Australia star Khanh Ong who got the all white memo.
The chef chose a white Prada tank top with a cardigan over the top and a pair of matching trousers.
Costeen celebrated her three year anniversary with tennis pro Nick, 29, last week and on Sunday, began hosting Stan’s live coverage of the tournament.
Nick Kyrgios’ girlfriend has undergone quite the style transformation since kicking off her fashion influencer career in 2021.
She’s worked with a wide array of top brands and even walked in her very first runway show at the Hunting Hue launch last October in a major milestone.
Costeen opted for a bronzed makeup palette with hints of highlighter and a nude lip gloss
She was joined at the event by Morgan Riddle (pictured) who also chose white, wearing a halter neck maxi dress
She added a pair of white heels with a pointed design and kept her accessories to a pair of dainty earrings and a bracelet
The blonde beauty’s red manicure stood out, and she chose a clean makeup look
Likewise making a night of it was MasterChef Australia star Khanh Ong (pictured)
Now well-known for her flawless style, she rakes in between four and five figures for each of her sponsored posts.
Morgan Riddle, 26, is a US-born content creator whose other half, Taylor Fritz, is currently ranked world #4.
Described in a profile by The New York Times as ‘The most famous woman in men’s tennis,’ Morgan met Fritz on celebrity dating app Raya in 2020.
She has 576K TikTok and 417K Instagram followers, and is on a self-proclaimed mission to ‘make tennis cool again’.
The petite blonde first drew attention from crowds and followers for her stylish courtside ensembles and has since evolved her content to include more educational-style explainers on her partner’s sport.
2025 marks Morgan’s fourth summer Down Under and she’s been lapping up the Sydney lifestyle in recent weeks in Bondi.
In a travel vlog posted, Morgan revealed she’s been shopping, tanning, drinking cocktails, and celebrated New Year’s Eve in the Harbour City.
‘Most Americans think that all of Australia is tan people, beaches, acai bowls and green juice. Most of Australia is not like that, but Bondi is’ she said.
‘It’s a fake world of influencers and sunshine and you know what? Sometimes I like that.’
YouTuber Sammy Robinson (pictured) added flip flop heels to her white slip dress