The basketball player shared the exciting news on her Instagram on Friday.
Bird, 40, posted the exciting news on her Instagram on Friday. In the captionless pic, the WNBA star is in a pool, while Rapinoe, 35, is seen kneeling on the ledge. There is a stunning ocean view behind them.
The comments section quickly filled with congratulatory messages from teammates, friends and followers.
The two began dating in late 2016, becoming the first same-sex couple on the cover of ESPN's "The Body Issue" in 2018. Earlier this year, the couple co-hosted the ESPY Awards with Russell Wilson.
This will be the first marriage for Rapinoe and Bird. The U.S. Women's soccer player was previously engaged to Sera Cahoone in August 2015. They called things off in early 2017.
The superstar athletes join recently engaged celebs Gwen Stefani and Blake Shelton. The two singers announced that they got engaged after five years of dating. Hear more in the video below.