Supportive girlfriend Costeen Hatzi watches boyfriend Nick Kyrgios at Australian Open

Nick Kyrgios’ girlfriend Costeen Hatzi looks on proudly as the tennis bad boy continues his dream doubles run at the Australian Open


Costeen Hatzi has proven to be a loyal girlfriend since she started dating tennis champion Nick Kyrgios

On Sunday, the 21-year-old showed her support as she sat in the crowd watching Nick, 26, win his third round doubles match against Ariel Behar and Gonzalo Escobar during day seven of the 2022 Australian Open at Melbourne Park. 

The beauty laid low in a pale green cap and a pair of black-rimmed glasses, with minimal makeup on. 

Support: On Sunday Costeen Hatzi (pictured) showed her support as she sat in the crowd watching boyfriend Nick Kyrgios win his third round doubles match against Ariel Behar and Gonzalo Escobar during day seven of the 2022 Australian Open at Melbourne Park

She had a pass hanging around her neck, and looked casually chic in a simple white tank top. 

Clapping throughout the match and appearing deeply invested, she was clearly engrossed as she watched Nick roar to victory. 

She also rallied around the tennis star last week, when he played a less than impressive game.     

Chill: The beauty laid low in a pale green cap and a pair of black-rimmed glasses, with minimal makeup on

Chill: The beauty laid low in a pale green cap and a pair of black-rimmed glasses, with minimal makeup on

A fan: Clapping throughout the match and appearing deeply invested, she was clearly engrossed as she watched Nick roar to victory

A fan: Clapping throughout the match and appearing deeply invested, she was clearly engrossed as she watched Nick roar to victory

Russian tennis star Daniil Medvedev beat Nick in a four-set win at the Australian Open on Thursday.

Following his second-round loss, Costeen shared a tribute to her beau on Instagram, saying he put on a winning performance despite losing to the world No. 2.

‘So proud of you. Played an amazing match… Still a winner in my eyes,’ she wrote sweetly.

Official: Nick went Instagram official with Costeen last month, sharing a photo on his grid of the couple cuddled up together. Both pictured

 Official: Nick went Instagram official with Costeen last month, sharing a photo on his grid of the couple cuddled up together. Both pictured 

The tennis champion was quick to share the sweet tribute, re-posting it to his own Instagram Stories.

He captioned the post simply, ‘Thank you boo’, as well as showing affection for his new love with a heart emoji. 

Nick went Instagram official with Costeen last month, sharing a photo on his grid of the couple cuddled up together. 

Support: She also rallied around the tennis star last week when he played a less impressive game. 'So proud of you. Played an amazing match... Still a winner in my eyes,' she wrote

Support: She also rallied around the tennis star last week when he played a less impressive game. ‘So proud of you. Played an amazing match… Still a winner in my eyes,’ she wrote