Reigning champions of England, Chelsea, were also reportedly in the running for Yohannes' services.
Yohannes has 10 caps for the USWNT, and in June 2024, she scored 10 minutes into her international debut in a friendly against South Korea.
In November, she declared her international allegiance to the USA after previously mulling the options of playing for the Netherlands. She was born in Virginia but moved to the Netherlands with her family when she was 10. At age 15, she signed a professional contract with Ajax.
"She's got unbelievable maturity and coachability, and someone who I know is going to become an important part of our program," USWNT head coach Emma Hayes said in May. "But I'm invested in that development, and we have to be patient with that considering her tender age and her lack of international and high-level experience."
At Lyonnes, she will play with fellow U.S. international Korbin Albert and team captain Lindsey Heaps.