Love, like tennis, thrives on rhythm. And if there is someone who knows both the chaos and the calm, it is Nick Kyrgios. In the high-stakes world of tennis, he found an unexpected anchor in model Costeen Hatzi, a love story that began with a simple IG ad. Often labeled the sport’s “bad boy,” Kyrgios has openly expressed how Hatzi became his world, even admitting, “My girlfriend wants to know Paris,” when explaining his desire to play the 2023 Roland Garros.
Now, the Aussie ATP star is serving another boyfriend goal. It showcases how tennis’s most eccentric character knows how to serve up romance.
The 2018 Brisbane International champion dropped a gorgeous photo of Hatzi on his IG story wishing her “Happy Valentine’s Day.” Hatzi echoed her beau’s sentiment. “My Valentine everyday,” she wrote, sharing a photo of them inside a car. However, this is not the first time Kyrgios transformed his Valentine’s Day into an event.
In 2023, the 2022 Wimbledon runner-up posted a video of his girlfriend getting her hands on Kyrgios’ credit card. Sharing the video, the Aussie star humorously wrote, “Happy Valentine’s Day. Good luck fellas.”
The Aussie star has been officially dating Hatzi since December 2021. The couple has been going strong ever since. From showing off the “New whip for the lady”, a tesla car that he bought for his love of life to enjoying her presence in the box during his return at the 2025 Brisbane International, Kyrgios has been setting the goals for other boyfriends. Recently, he made an adorable gesture for his belle. One that echoed their equation.
While Kyrgios’ Valentine’s Day celebration took a funny turn, Hatzi just validated her love for her partner. “Everyday is Valentines with you,” she wrote with a heart emoji. She also brought a beautiful present for her Valentine, a picture frame collage with three of their loved-up snaps, including a click from Kyrgios’ brother Christos’ wedding.
The couple, who has been serving the power couple narrative for three years, was driven to each other by fate. It was a sell ad post by Hatzi on Instagram, that Nick Kyrgios encountered and messaged her. Although he initially wanted to buy a mirror from her, he eventually asked her out for dinner, which propelled the beginning of their dating. After that, they never looked back. Hatzi revealed, “After that he moved all of his work and training to Sydney and has pretty much been living in Sydney since.”
Hatzi’s presence has been integral in Kyrgios’ life. The Aussie player once praised his girlfriend as “The One” and thanked her for bringing out the best in him.
Nick Kyrgios believed his girlfriend “tamed” him “a lot”
Kyrgios, who often catches the spotlight for speaking his mind, complimented Hatzi with an adorable mention. He revealed how she helped him remain calm with her support. “I don’t consider myself to be a bad boy in tennis. The media kind of painted that villainous type role very early in my career. Costeen has taken on the role of being a girlfriend and definitely tamed me a lot and supported me,” he said.
Continuing further, he added how Hatzi brought out the best in him. “She is the funniest person I know. We literally laugh 95% of the time, I feel as if she brings out the best in me,” Kyrgios said in an IG Q & A session in 2022.
Although Hatzi remained a pillar of strength for Kyrgios, she hadn’t been a tennis fan earlier. “I never really watched a tennis game in my life, so yeah, this is all new for me,” she said. However, things changed after her relationship with the Aussie star. From not attending a tennis match earlier, she became a TV presenter for Stan Sport Australia in 2025 AO.
Hatzi also praised Kyrgios’ determination. Complimenting her beau’s return to the home-soil Grand Slam, she said, “It was a long recovery, but he was really patient and he did really well, he’s been training lots and doing all the right things to get himself to this point.” She also defended her boyfriend’s image in the media, highlighting “He’s not as crazy as everyone thinks.”
Nick Kyrgios and Costeen Hatzi, who share the delight of “love at first sight” are emerging as one of the steadfast couples of the sport. From Nick Kyrgios’ lavish celebration of his girlfriend’s birthday to their recent third-anniversary celebration in January, their love remains a social media highlight for their followers.
The post Nick Kyrgios Swoons Over Girlfriend Costeen Hatzi as Valentine’s Day Celebration Turns Into a Romantic Spectacle appeared first on EssentiallySports.