Earlier this summer, American world champions Rose Lavelle and Sam Mewis were ready for Manchester City.
In the last two days, they have also recruited the new Champions League champions Lucy Bronze and Alex Greenwood.
Now Manchester United responds by presenting Tobin Heath and Christen Press on the same day.
It's an arms race going on in Manchester.
- I look forward to the challenge of playing in England and playing with and against some of the best players in the world, says Heath who has made 168 international appearances for the USA.
Heath comes most recently from the Portland Thorns and has previously played for French Paris Saint-Germain. Press is known to the Swedish audience for having previously played in Tyresö and Gothenburg. Next up is the striker from the Utah Royals.