Harris and Krieger also each wrote a touching note to Sloane's birth mom, whose name they did not identify.

\"We promise Sloane will be loved every single day by us, our friends and our family. We promise to give her the tools to live a happy, successful life of inclusivity and support,\" they wrote. \"We promise to share her adoption story with her from the very beginning and celebrate every milestone!\"

\"We promise to encourage her to follow her dreams no matter how big or small,\" they added. \"We promise to be open minded and respect your wishes to have future communication and that she will always know how much you love her!\"

View this post on Instagram

A post shared by Ashlyn Harris (@ashlynharris24)

The couple did not reveal any further details of Sloane's adoption. Krieger described it on Instagram as the \"one of the most beautiful yet stressful processes\" she has experienced with Harris.

Harris and Krieger were both members of the U.S. women's national team that won an historic fourth World Cup title in 2019.

At the time the U.S. women won the World Cup, there was only one mother on the U.S. women's national team, and just seven mothers in the National Women's Soccer League.

Harris and Krieger both now play for the Orlando Pride, the National Women's Soccer League team in Orlando, Florida.

The couple received tweets of congratulations on Sunday welcoming their daughter Sloane into the soccer community.

Our hearts 🥺💜

So happy for @Ashlyn_Harris & @alikrieger 👏 pic.twitter.com/K84Ms0cMun

— National Women's Soccer League (@NWSL) February 15, 2021

We are smiling ear to ear! 💜

Congratulations to @alikrieger and @Ashlyn_Harris! 🎉 https://t.co/h4iIqZ1uFw

— Orlando Pride (@ORLPride) February 15, 2021

Hearts so full! 🥰😍🥰 Congrats @alikrieger and @Ashlyn_Harris!

And welcome to the family Sloane! pic.twitter.com/aMi32XgCTL

— U.S. Soccer WNT (@USWNT) February 15, 2021
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