Top tennis star Kyrgios and influencer girlfriend rumoured to have split

After a whirlwind four-year romance, word has it tennis star Nick Kyrgios and his social media influencer girlfriend Costeen Hatzi have called it quits.

After a whirlwind four-year romance, word has it tennis star Nick Kyrgios and his social media influencer girlfriend Costeen Hatzi have called it quits.

The couple, who have been dating since late 2021 after meeting through Instagram when she was selling a mirror, had been inseparable since making their relationship official.

However, insiders tell Saturday Confidential cracks recently began to appear and the pair have since broken up.

Not only have they removed one another’s initials from their Instagram bio’s, Hatzi, 24 has reportedly recently jetted home from the US where she was staying with him, after the relationship soured.

Costeen Hatzi and Nick Kyrgios had been together for four years. Picture: Instagram

... but cracks began to appear recently and the pair have since broken up. Picture: Don Arnold/WireImage

Sources close to the pair divulged a little information yesterday.

“Nick is a party boy,” one insider said.

“He always has been.”

“She would have to be willing to accept how he rolls and she won’t anymore,” said another.

Confidential approached both Hatzi and Kyrgios for comment yesterday, however, neither responded.

Just months ago, the couple were branded one of the most iconic couples in Australian tennis, with Hatzi having followed Kyrgios all around the world to cheer on her 29-year-old partner.

They have spent time in Europe, the UK and the US, where Kyrgios competed in tennis tournaments.

Costeen Hatzi at the Emirates Suite during the 2025 Australian Open. Picture: Mark Stewart

So serious was their relationship that, in 2023, the couple announced a new addition to their family – a dachshund puppy named Boo!

Hatzi shared a cute snap on Instagram with the pooch in August captioned ”my family” with a heart emoji and a paws emoji.

In a segment on the Today Show this year, Hatzi said she was proud of how far Kyrgios had come since pulling out of the Australian Open tournament two years prior.

“I am super excited to watch him play. I’ve waited so long and I’m super proud of him to get to this point,” she said.

“The fact that he’s here again after injury, after two years, it’s amazing. I’m just really happy for him.”

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