Nick Kyrgios showers his glamorous new girlfriend Costeen Hatzi, 21, with more high-end designer gear as the couple go shopping for Dior By Abi Moustafa For Daily Mail Australia Published: 00:45 GMT, 27 January 2022 | Updated: 00:48 GMT, 27 January 2022 Viewcomments Nick Kyrgios may be winning on the doubles court, but it's his glamorous girlfriend Costeen Hatzi who is really reaping the benefits. The former World No. 13 took his new squeeze to a Dior store in Melbourne on Wednesday in between games at the Australian Open. An employee at the store shared a photo on Instagram of the happy couple with their new purchases as they posed next to a shop attendant. Hey, big spender! Former World No. 13 Nick Kyrgios took his new squeeze to a Dior store in Melbourne on Wednesday in between games at the Australian Open Nick, 26, treated Costeen, 21, to a Dior Saddle Bag, which retails for $5,800. It's not the first time the tennis bad boy has splashed out on his girlfriend. He bought her a $3,450 Louis Vuitton handbag earlier this month, and Costeen later described herself as 'one lucky girl' on Instagram. 'One lucky girl': Nick bought Costeen a $3,450 Louis Vuitton handbag earlier this month, and she later described herself as 'one lucky girl' on Instagram Twinning: The pair are so smitten, they've even started wearing matching outfits The pair are so smitten with each other, they've even started wearing matching outfits. Costeen has been watching all of Nick's games at Melbourne Park and has been described as a key member of his 'team'. She showed her support in the crowd on Sunday for Nick and Thanasi Kokkinakis' third round doubles match against Ariel Behar and Gonzalo Escobar. By his side: Costeen has been watching all of Nick's games at Melbourne Park and has been described as a key member of his 'team' It comes after Russian tennis star Daniil Medvedev beat Nick in a four-set win at the Australian Open last 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. Nick, who went Instagram official with Costeen last month, is still in the Australian Open playing in doubles alongside Kokkinakis. Official: Nick, who went Instagram official with Costeen last month, is still in the Australian Open playing in doubles alongside Thanasi Kokkinakis Share or comment on this article: All rights reserved for this news site (dailymail) and under his responsibility