Greek-Australian tennis icon Nick Kyrgios, a beloved figure known for his fiery talent and big heart, has reportedly parted ways with influencer Costeen Hatzi after a whirlwind romance of nearly four years.
The couple, who lit up the tennis world and social media with their charm, has called it quits. Sources point to lifestyle differences as the reason behind their split.
Kyrgios, whose Greek heritage through his father fuels his passion on and off the court, has long been a proud ambassador for the Greek-Australian community. Alongside Hatzi, a Sydney-based influencer, they became one of Australian sport’s most adored pairs. However, according to News Corp, their paths have gently diverged in recent months.
“Nick loves to live life to the fullest—he’s got that vibrant Greek spirit,” an insider shared with The Daily Telegraph. Another added, “Costeen’s been amazing, but she’s ready for a different rhythm now.”
Hints of their breakup surfaced when the couple quietly removed each other’s initials from their Instagram bios. Kyrgios is currently in the United States, pouring his energy into an inspiring tennis comeback after a tough injury layoff, while Hatzi, 24, has returned to Australia, suggesting a new chapter for both.
Their love story kicked off in late 2021 when Kyrgios, ever the romantic, reached out to Hatzi via Instagram about a mirror she was selling. What began as a playful message soon blossomed into something special, with the pair going public in January 2022. Hatzi called it “love at first sight,” by May, they were sharing a Sydney apartment, building a life together.
Hatzi, a psychology graduate from Australian Catholic University, quickly became Kyrgios’ biggest cheerleader, travelling the world to support him—from Europe to the UK and the US. Though she admitted in Netflix’s BreakPoint that she’d “never really watched a tennis game” before meeting him, she embraced his world with grace, captivated by the same Greek passion that drives his game.
In 2023, their bond seemed unbreakable. They welcomed a dachshund puppy named Boo into their lives, with Hatzi posting a sweet Instagram caption: “my family.” Through Kyrgios’ injury struggles—missing the Australian Open two years in a row—Hatzi remained his rock, supporting him through surgeries and rehab. On the Today Show in January 2025, she glowed with pride, saying, “I’ve waited so long, and I’m so proud of him to get to this point.”
They were celebrated as one of Australia’s most iconic duos not long ago. Hatzi grew from a tennis newbie to a devoted partner, often seen courtside as Kyrgios dazzled fans with his skill and charisma—qualities many tie to his Greek roots. Daniel Horsfall’s manager told ESPN, “Costeen lifts him up, gives him inspiration—she’s been an incredible partner.”
Together, they travelled the globe, blending tennis with adventure over nearly four years. Hatzi told 9honey about their routine—breakfast, training, and relaxing in the player’s lounge—adding, “Nick’s just my boyfriend—until I see the cameras and remember how amazing he is on the court.”
Their relationship sparkled with fun moments, like a viral clip where Hatzi teased a fellow WAG during a fashion interview. She also took on the home front with a smile, noting, “Nick doesn’t have to worry about cleaning—I’ve got it covered.” She admired his competitive edge, which echoes his Hellenic heritage, saying, “No one’s as driven as Nick.”
As an influencer and entrepreneur, Hatzi worked with brands like Bondi Sands and brushed off the “WAG” label. “I’m there for Nick, but I’ve got my passions too,” she said.
The split comes as Kyrgios channels his energy into a triumphant return to tennis. At the Miami Open, he celebrated his first tour-level win since 2022 against Mackenzie McDonald—a testament to his resilience. Though his run ended against Karen Khachanov, his spirited fightback reminded fans of the Greek fire that makes him a standout star.
For Greek-Australians, Kyrgios remains a source of pride—a talented, big-hearted player who wears his heritage with honor. As he and Hatzi move forward on separate paths, his next chapter promises more of the brilliance that’s won him fans worldwide.
