Daria Kasatkina and Natalia Zabiiako announce their engagement

She said yes! Another of tennis' most popular couples are getting married. Daria Kasatkina and Natalia Zabiiako made a big reveal on Instagram on Saturday, as Coco Gauff was defeating Aryna Sabalenka in the Roland Garros women's final.

Since officially debuting as a couple in 2022, Kasatkina and the former Olympic figure skater have been fan favorites, both for openly living their truth and their behind-the-scenes vlog series "What the Vlog?" that chronicles life on the tennis tour. The latest episode dropped just over 12 hours before the couple made their announcement, and gave their perspective of the year's second Grand Slam.

And though they gave no indication in the episode of their impending big news, context clues from their reveal may inform who popped the question to whom: Zabiiako is known for her penchant for black nail polish, and in their joint post, a hand with painted nails can be seen donning a sparkling engagement ring.

Read more: Daria Kasatkina, Natalia Zabiiako take the ice with Olympic champion Sui Wenjing in Beijing

Kasatkina reached the fourth round at Roland Garros in her first Grand Slam appearance since she switched sporting nationalities to Australia in March. Part of her reasoning for doing so, she said,

"Australia is a place I love, is incredibly welcoming and a place where I feel totally at home," she said in announcing her switch, adding in Paris that: "I just feel free with the wings. Yeah, the main thing is that I can live my life now freely and happy."

The couple's happy news was met with congratulatory messages from around the tennis world, including from Katie Boulter, who said her own big 'Yes!' to fellow tennis player Alex de Minaur in the offseason.

Read more: Alex de Minaur confirms US Open mixed plans with fiancée Katie Boulter

But there won't be much time for Kasatkina and Zabiiako to enjoy their newly-engaged status, though; the world No. 17 will kick off her grass-court season at the new WTA 500 event at the Queen's Club, which begins Monday.