Nick Kyrgios shares sweet photos with Costeen Hatzi as they celebrate their one-year anniversary 

Nick Kyrgios has posted a moving tribute to his girlfriend Costteen Hatzi to celebrate one year together as a couple on Monday.

The tennis star, 27, shared a series of photos on Instagram of the couple gushing about his girlfriend.

“THANK YOU L…one year since we met and everything got better,” she captioned the post.

Nick Kyrgios shared sweet photos with his girlfriend Costeen Hatzi as they celebrated their one-year anniversary on Monday.

Costteen also shared a sweet tribute to her boyfriend on social media, writing: ‘One year with my human. The best year of my life. Love you.’

Nick and Costteen became a couple in December of last year after he split from his longtime girlfriend Chiara Passari.

In July, Nick and Costteen confirmed that they will try for a baby next year.

“THANK YOU L…one year since we met and everything got better,” she captioned the post.

During an Instagram Q&A, Nick was asked a question about babies and responded with a photo of the couple on the beach with the caption “next year” along with a ring emoji.

Engagement rumors circulated about the lovebirds in May after a Q&A showed Nick embracing the interior designer, 22, with the caption “coming soon”, along with heart and ring emojis.

However, Kyrgios’ management soon denied that the couple was engaged.

Costteen also shared a sweet tribute to her boyfriend on social media, writing: ‘One year with my human. The best year of my life. Love you’

Last month, the couple shared videos on Instagram while set up your Christmas tree and lights.

In several clips, Costteen could be seen hanging lights on the wall and decorating the tree.

The couple seemed head over heels in love when Nick shared a photo of Costteen hanging the star above a snow-covered tree.

Nick and Costteen became a couple in December last year after he split from his girlfriend Chiara Passari.